Originally posted by Ursumeles
Proof?
Mainly the fact that he could survive an injury that would've killed anyone else purely (Sidious didn't know that someone could survive this kind of injury) on his willpower and hatred, which at least rivals Bane and he resisted Zannah's sorcery.
How?
Being on the verge of defeating one of the most skilled Jedi ever (Qui-Gon Jinn) after roughly 30 seconds while suffering a blaster wound to the shoulder, eclipsing both Jinn (one of the most skilled Jedi ever) and Obi-Wan (rivaling his master as one of the skilled Jedi ever and being one of the best fighters of the Jedi Order), pushing back TCW Obi-Wan, stomping Savage Opress, ... all of these things are better then what any of the other combatants have ever showed.
Originally posted by Tondemonai
Probably Wrath, given that Zannah can use TP on Jaina and Maul, who then get quickly killed, and Wrath then beats her in saber combat
I can agree with this. The Wrath can resist the Dreadmasters, which I think is the best TP resistance feat out of the bunch, but I would wager on Maul for having the best willpower. I know next to nothing about Jaina besides that she's a good duelist. Maul and Wrath are very similar, I can see either of them beat Zannah on neutral ground and then have the fight go either way between them.