Revan has the leg up here.
Galen is Darth Vader's apprentice. He is quite powerful in the force, and at lightsaber combat, but not good enough.
Revan however is not only quite powerful in the force, and exelent at lightsaber combat, but he also is an amazing stratigist, when even in a 1 on 1 force lightsaber duel, tips the scales in his favor.
Originally posted by Lord Knightfa11
he has... um... the thought bomb... and... stuff. and... a lot of sith holocrons that give him cool stuff... ya. and a cooler outfit. Hes in a better game IMO.
Though I hate to cast a mark against a revan supporter, the thought bomb would be foolish to use in 1 on 1 combat. It can really only be used in the way Bane did.
Here's a list of Revan's abilities.
http://starwars.neoseeker.com/wiki/KotOR_Force_Powers
As for Starkiller
Lightning
Push
Grip
Repulse
Lightsaber throw
Lightning shield
So, there is no real question the winner is: