Versatility allows Revan to operate efficiently in a plethora of situations, but his lack of specialization makes him less efficient in any singular area, one on one combat included. He won't gain an advantage over the mythos's most proficient Djem So specialist simply because he has more options.
Whilst Revan is a tactical genius, this skill is less applicable in the midst of combat than in the command of an armada, assuming that Revan doesn't have time to prepare a strategy beforehand. Another overlooked factor is that Anakin is also a highly skilled military general who isn't always the mind-clouded rage beast he was on Mustifar.
In the end Anakin is faster, stronger, more skilled, more powerful, and is better specialized for the engagement. This is not to say Revan doesn't have a fair chance of victory either, though. He himself is the more versatile, the more collected combatant, and has a far grander mastery of the Force. But then again, so did Count Dooku, and I see this engagement ultimately being pretty similar to his own battle with Anakin in RotS.