Sion and Maul with their rage go full force at the opposing team. Dooku says to Bane "Lend me your saber". Bane nods his head at Dooku and gives it to him. Dooku then said "I will give you power beyond your wildest dreams if you become a human body shield for me". Bane then says "yes yes power." He agrees. While that is happening Sion then said to Maul "they can't handle us both if we attack as one". Maul nods. As they approach, Dooku then grabs Bane and says "at least you have your honor". Dooku pushes Bane into Maul's lightsaber which causes him to fall backwards into Sion. Sion's lightsaber then goes into the back of his new ally that screams in agony. Maul, having a double bladed lightsaber, cuts off Sion's right leg.
Both Maul and Sion on the ground, screaming over their injuries. They both try to get up but fail. Dooku laughing at their ignorance starts to walk towards them. They both try to crawl away, but the pain overwhelms them so they lay idle hoping he would spare them. Dooku, looking down at them then says "you should of took the job at Walmart". He then activates the two lighsabers and decapitates them both. Walking away his last words were "I wonder how much walmart pays"?
- Just kidding
Sion/Maul vs Dooku/Bane
I don't know anything about Darth Sion; I haven't played KotOR II yet. I'll just sit this one out, but my money's probably on it coming down to a fight between Maul and Bane as the deciding factor - Bane wins that.
Vader/Dooku vs Revan/Traya
Revan alone trumps both of his opponents. He outmatches them individually in every way. Just for the sake of it, however, I'll give an argument for Vader and Revan in sheer power. Say they're equal. Revan still bests Vader due to his experience, skill, and knowledge. But anyway, though he outmatches them both, both combatants are dangerous enough in their own right. However, with Traya at Revan's side, it at the very least removes their advantage of numbers, not to mention that Traya is powerful in her own right (though I believe Revan achieved, in the end, a level of strength beyond Traya, but that's another argument). Revan/Traya have this in the bag.
Wanderer, I like a lot of your reasoning thus far, having stumbled across your posts. But I must warn you, for your own sanity, by saying Revan outstrips Vader in every way (even though it's probably very very true) there's gonna be vader loyalists coming out of the woodwork, with sayings like:
"Vader is the Chosen One. He beats all"
to...
"These silly video game characters are overhyped/overpowered."
Not exactly logical rebuttals, but it'll come, trust me.
I've already explained my stance on 'The Chosen One'. His tools to do what he did are through sheer destiny, not personal skill or power. The only true argument for Vader being a bad-ass is the fact that Obi-Wan said, "Hey! I see more bacteria in his blood than Yoda has!" and who is to say that Revan isn't more powerful than Yoda? He was said to be a powerful master in the original trilogy and back then all we had to go by was that he was much, much, much more powerful than Luke, but that's not saying much. Luke, strictly movie-wise, is just shy of 'weak' as far as Jedi go. In the prequels, all we have is that Yoda is a council member, its supposed virtual 'leader', and his fight with Dooku. His fight with Dooku was a stalemate and even the council back in the day feared Revan like a small child in a tent full of psycho clowns. Other than that, we've got Vader vs Obi, which was won through Obi's own allowance, and Vader vs Luke, which... well, we all know what kind of fight that was.
Vader isn't as strong as Revan, and I'll stick to that. Prophecy be damned, and besides, since when did Revan have anything to do with the prophecy? At one point, wasn't Revan in question to be the Sith'ari himself?