SW Duels ~

George Lucaconfirmed it

1. The "Darth Vader dies from lightning" argument has already been debunked. 2. No argument 3. Depends on what you mean, overall Vader is much more powerful, but if you mean physical strength then Malgus might win

Vader would never have been able to kill Sidious in combat. He just caught him off guard and threw him in a random hole. That doesn't take much skill.

Staele was like Yoda at the time. It's not a shame to be beaten by her.

And while I do agree that Vader is better at lightsaber combat, Malgus is better with the force since he's not limited by his suit. And their endurance would be about the same.

Another summary:

Vader has much more endurance than Malgus and Vader is a master at lightsaber combat. Vader's powers almost rival that of the Emperor's and Vader has a brilliant knowledge of force powers. Plus, Vader has bested many Jedi Masters without assistance notably at the Conclave on Kessel.

Vader bested Cin Drallig without any assistance, a blademaster. Darth Vader knows powers that Malgus probably doesn't even know of. Vader's master was better than Malgus' so he would have obtained extensive knowledge of the darkside. Vader has also good knowledge of the lightside and therefore can use both sides to his advantage.

Malgus's telekinesis is pitiful next to Vader, who has crumbled cathedrals, thrown around ships, knocked over trees of gargantuan stature, crushed enormous droids, and so on. And Malgus really has nothing else in terms of Force Power over Vader, in fact, Vader destroys him in a Force battle also.

Malgus has only defeated rather unskilled Jedi, the jedi in the Jedi Temple when Malgus attacked were mostly padawans. Malgus did fight Staele Shan, but Stalele was trained as a consular and wasn't trained much in lightsaber combat.

Vader's vulnerability to lightning is greatly exaggerated and he was able to endure many blasts of lightning. Malgus' lightning probably pales in comparison to Sidious', which didn't kill Vader, Sidious' lightning was not a direct cause for Vader's death. He died because his mask was removed.

Vader can use the light side and the darkside, Malgus only knows the darkside. Vader also possess force deflection, any advantage Malgus has in force is instantly nullified because Vader can deflect force with his hands. So Vader can use one hand to deflect lightning and the other to fight with a saber.

Vader with a severed hand took Galen Marek's extremely powerful Force Lightning and the full power of two lightning Pylons, on Kamino and just knelt down, with steam coming off of him, about an hour later he seemed fine when Marek talked with him.

This debunks the idea that he has a weakness to Force Lightning, this was uncovered to be just an assumption, when he was killed by Darth Sidious, he was taking at point-blank range the most powerful Force Lightning ever, what is most impressive is that he picked up Sidious, threw him down the reactor shaft and managed to survive, unaided by his life-sustaining rage, and made it all the way from the Throne Room in the Observation tower, to the shuttle bay of the Death Star II, a moon-sized Battlestation.

Malgus is a practitioner of Shien... Vader is the greatest Shien practitioner ever, Vader is skilled in all forms and incorporates them all into one. This form was used to kill many Jedi Masters after Episode 3.

Vader is rage incarnate, he was filled with complete hatred after Padme's death. And Vader survived being almost burnt to death, being electrocuted with the full power of two electrical pylons and Marek's lightning.

Although Malgus has a very powerful force ability that kills those around him, this technique would be very outdated and probably a counter for it would have been made. 

Only 2 Jedi managed to best Vader as a Sith and that was Obi-Wan and Luke, no one else comes even close. Even at Kessel where the Jedi outnumbered him, he suffered only minor injuries.

Although Malgus has a slight edge with the force, Vader can use Kinetite which is very similar to lightning, paired with Vader's knowledge of defending against lightning, using force lightning gives Malgus no advantages.

Another thing is that Malgus lives in a time where there are many Sith Lords, this dilutes his power whereas in Vader's time there are only two Sith to have the power of the darkside. Vader also has a superior master, Sidious and Sidious knows almost every Sith technique

And notwithstanding Vader's poor agility, he can move very quickly with a saber, many jedi have trouble keeping up with him.

Vader has experience in defeating Sith Lords like Dooku, who were very powerful. Vader is also the chosen one , he has the most potential of all the Sith and Jedi but even with the suit he has a lot of power.

But Malgus has the upperhand in intelligence, although Vader is smart, his arrogance blinds  him and restricts his powers

From this I can safely conclude:

1. Malgus' lightsaber skills are piteous next to Vader's
2. Vader's poor agility is compensated with his speed with a saber
3. Vader can block or deflect Malgus' force attacks and knows some that Malgus does not
4. Vader has far superior endurance than Malgus who only sustained minor injuries compared to Vader's.
5. Vader has far more experience killing Jedi, he has killed more Masters than Malgus in 20 years than Malgus in his entire lifetime.
6. Malgus has a very strong affinity with the force however this is useless pitted against a being conceived by midi-chlorians
7. Malgus is far more agile and has the edge and like I explained earlier, this can be countered because of Vader's speed in Saber fighting.
8. Malgus lived in a war where Sith killed Jedi, but this makes him no more skillful, in fact, it actually puts him to shame, he was supposed to live in a time where the Sith had waited and prepared for 300 years and he only kills a few Jedi, despite the fact he had lots of assistance. Vader lived in a time where it was Droids vs Clones but still killed more.
9. Malgus is smarter than Vader, so could find a way to counter his skills. But they both are somewhat arrogant and one could use Dun Möch against the other to make the opponent angry and unbalanced. 

PS: Sorry if I'm repeating myself some of this is taken from earlier.

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Well, that's certainly something to keep in mind. I don't know much about Darth Malgus either so I'm not sure. I was leaning towards Malgus but now I'm not so sure...

George Lucas also had the idea behind the droid arc... Really though how does that make any sense?
Oh look I'm the emperor I'm going to take my strength and put it in this suit of armor hahaha....

No... I mean how powerful he is... with force and lightsabers.  

Bruh I swear with this Kessel thing....

Lets not forget that video games always over power characters. So while it may tone down Vader's endurance and resistance to force lightening, it basically tones down everything on Malgus.

Malgus:

Pros
1. Agility
2. Brutality. He is a very aggressive fighter.
3. He's pretty intelligent from all the fights he's been in and with tactical strategy.
4. Force lightening, while not as deadly as Sidious' is still good to have on your side. You could unleash it whenever to hopefully hold back your opponent.

Cons
1. Is used to almost fighting (from what I've seen on YouTube clips) with larger groups or even at least with one or two other Sith. Being by himself against someone that rituals him in almost everything may prove as a weakness cause he no longer has sense of security of being able to have someone else there just in case.
2. Aggression is very good sometimes, but against Vader's who has no need to outrun him (he also can't ) it may not be the most effective. He'd have to stop nonstop with attacks to hopefully weaken Vader's defenses. But Vader's is a tough adversary and good with defense so this will prove most difficult.
3. Not quite as powerful in the force as Vader.
4. His agility may lead to him tiring out since Vader is good with defense. He'd have to hope Vader messed up or do something spectacular or he may be there for awhile attacking Vader quickly with bus agility.


Vader:

Pros
1. Powerful in the force
2. Greatest force user (sorry Obi-Wan) ever. Has experience in both light and dark side which is a huge advantage. Trained under Sidious, greatest Sith ever, and Kenobi one of the best Jedi.
3. Skills with a light saber.
4. He does have endurance, far greater than that of Malgus. While Malgus can take hits and carry on, Vader has handled some of the most deadly situations ever and survived*. Most ante able are burning on Mustafar, being rebuilt (that was probably very painful) having limbs severed several times as both Vader and Anakin and somewhat surviving* the greatest barrage of force lightening ever. (he technically survived it because that wasn't the direct cause of his death. The direct source was removing the mask. Sure he would've died soon afterwards from the lightening, but he would've survived a little longer than removing his helmet and killing him much sooner. And his arm was also cut. He's managed these wounds befriend, but don't tell me that after a third time (I think) it doesn't hurt too much because he's "used to it". It still is very painful. Not to mention, while he was still having shock waves going through his *mechanical* body, he picked up Sidious who was releasing something similar to a force blast of lightening, walked him over to a chasm in the Death Star II and threw him down it. No other Sith could withstand that, especially with his sustained injuries. This shows just how powerful he was. His hand was gone for this too)
5. Is intelligent as well, and knows many things that could counter Malgus' attacks and whatnot. I won't use too much EU info but surely he picked up a few "unnatural" abilities from Sidious during his early years. Thus also leads to him having better defense skills since he can't do as much on offense with his suit restrictions.
6. Lets not forget his force choke...

Cons
1. His suit obviously slows him down so he'll have to be better on the defense and hopefully outwit Malgus somehow.
2. Force lightening is a crippling, but not death, blow. This will certainly slow him down though.
3. In this open area, not many resources are available to help him on the offensive. This favors Malgus and his aggressive attacks.

It may sound like I favor Vader, but I'm still split on this vote. I think it could go either way and would be very close. Originally I thought Malgus would have the edge, but Boba has brought up some good points. And according to GL, it seems that Vader would win hands down. I seriously doubt that Malgus is 81% or higher compared to Sidious. 65% or around that seems more logical to me. But throwing that fact aside, this is how I view their offensive to defense skills/usage.

Malgus: 80% offense; 20% defense.
That is just how he rolls. He likes to be an aggressive fighter.

Vader: 35% offense; 65% defense
Obviously, his defense is better than his offense because his suit restricts him. But still, against Malgus, this helps him. Cause unless he was Vader before injuries (if it was, hands down, he would whip Malgus' ass) then trying to outmatch Malgus in aggressive attacks is foolish (from why I've seen).

I think that one of two scenarios would play out in the area. Both are likely, and each one favors one of the two Sith.

Scenario 1 - Malgus wins:

In this scenario, once the fight began, Malgus would unleash force lightening to stun Vader. Then he'd rush in and do attack after attack after attack, trying to tire Vader into making a weak parry where he could take control of the fight. This would take awhile, no doubt, but at least in this situation, Malgus can afford a wrong move (unless Vader responds quick enough, which he very well could. Idk, maybe) whereas Vader making a wrong move almost means him losing. But anyway, Malgus would continue to attack and unleash force attacks until Vader wore out and made a wrong move. Then Malgus would strike and win.

Scenario 2 - Vader wins:

In this alternate scenario, Malgus would still start the same way, but Vader would be able to formulate a plan quick enough in his mind while defending himself to defeat Malgus. Then, maybe he could throw in small counter attacks to throw Malgus off, and if Malgus faltered, make a big one and try to seize the offensive. Vader is knowledgeable in the force do its very possible he could find a way to turn the favor of the battle to him.

Malgus uses brute strength, agility, and some light saber skill and intelligence; Vader uses force powers, intelligence, and light saber skill. This battle would definitely be close. But in the end, who do I think? I may have to go against the crowd here and choose Vader. After all, Malgus is OP to begin with. And his type of fighting isn't the best of idea against Vader's. it would definitely be very close. And yeah, I think it comes down to, who makes the more critical mistake: Vader or Malgus? Although Malgus would be more on the attack and making a mistake would be more forgiving to him, I don't think that Vader will let it stay that way for long (tiring Malgus out that way will be hard, especially defending himself all that time too). Vader on the other hand would use his advantages in this fight (which I think are better) and find a way to win.

IMO...
Light saber skill (which Vader is better at) is more important than physical strength.
Intelligence (which both have, but Vader has a wider range compared to Malgus mostly being smart with strategy and war tactics) goes to Vader.
Agility is very important so that's good for Malgus. Vader is very low in this category.
My ratio of offense:defense favors Vader so that's good for him. (I don't think that defense is a lot better to have than offensive, and the other way around).
Force powers are also important, and that's pretty equal (depends how deep you wanna go). Main difference is that Malgus has force lightening.

So, slightly Darth Vader. It would still be very close though.

Basically my thoughts for the whole fight.

No, he still would've won. First of all, he had the element of surprise on his side. He also is the Chosen One and is basically the most powerful Jedi ever. Right now, he is in his most powerful form ever.

Star, Vader is not the greatest force user. He might have been after more training and if he wouldn't have had his little accident on Mustafar. But Yoda, Sidious and probably many others still had greater knowledge and power over the Force than Vader ever had.

I'm not trying to say that he was the greatest force user, I'm just saying that he's one of, if not, the most powerful Jedi ever. I do think he's great in force power but not necessarily the best. I do think that he's better with the force than Malgus though.