Revan? As Kreia says "Revan was power. Staring into his/her eyes was like staring into the heart of the Force. Even then, you could see the Jedi s/he would slay etched on his/her soul." I don't think of Revan as...a brute in that way however, Malak was definately the wimpy Brute. I think of Revan as somewhat of a schemer...he/she was definately manipulative, and had great charisma, as Jvstice said. I do think Revan is somewhat overrated...I doubt Revan was 'the best' as most people believe.
Maybe 'one of the best'.