It can be argued that the Warriors of old tended to tap into the gray areas and sometimes downright dark zones in terms of Light and Dark sides. Also, in terms of Saber combat, Revan would have an advantage, since lightsabers were fairly common compared to the ROS and post ANH era's. On the other hand, anyone in those era's who -did- use a lightsaber were always powerful and skilled. Makes for a rather small pool of challengers. Since we can't have them duke it out in a round-robin, we might have to agree to disagree.