No... my Revan build just plan stunk (first time playing the game pritty noobish build) but then again overall he would be the same power as the Exile normally, yet he still can't take Sion because he wouldn't be able to break his will so Revan could kill Sion 100 times but he would keep coming back just as powerful until Revan was finally diffeated
Also one thing I did just remember... the one reason Nihilus was able to be diffeated was that Krea tricked him into trying to feed off the Exile, this backfired and the Exile weaken and or feed off him instead. If this didn't happen he probably would have been stronger then Sion (yet he wouldn't have as many lives) And as I said about Visas, she is still young if I remember her age is somewhere around 25, wait till she is older and has experance like some of the Jedi/Sith posted on this board. But I will admite I had a slight error with Revan and Darth Nihilus's spot. Last the part about Treya is the only one to lift I lightsaber with the force and use it, I ment she is one of the few who can do it and effectivly, sure a lot of Jedi/Sith could probably do the same trick, but for how long and how well.