dadudemon
Okay. May bad. Let me explain more plainly.Some, that have posted in this thread, make it seem like Darth Vader + Marek may not win.
That, to me, means they think Sidious is absurdly more powerful than all other characters.
Go back and read all of the posts. Some of them make it seem he's absurdly more powerful.[/b]
The distance between Sidious and Vader may appear to be somewhat close in terms of the percentages Lucas assigned, but it's still sufficient enough that with Vader's oft'-overstated but present vulnerability to electrical damage that Sidious was able to mortally injure him rather quickly. (Cf. this with the amount of electrical energy Vader withstood from Starkiller in The Force Unleashed II's final battle, suggesting there exists a comparative disparity between the damage Starkiller can unleash vis a vis Sidious.)
More importantly, Vader visibly deliberates between Marek and Sidious in the first game when Sidious "learns" of Marek's existence. Starkiller assures Vader "we can destroy him together!" and Vader clearly considers this option, but ultimately decides against it. While not necessarily the case, Vader clearly had reason to believe that Sidious could triumph over his and Marek's combined might.
No one is suggesting that Sidious is "absurdly more powerful" than any other character (though he actually is compared to most): he has at least four confirmed superiors and a few more who rival him. That said, we've seen examples recently in TCW where a solo fighter can take on two or more opponents whose individual powers rival his and, depending on tactics employed and environment exploited, can perform well. Sidious, who is more powerful than either Vader or Marek, could very well win.
In most situations, assuming these two play it smart, I'd say they have a clear advantage.