Revan vs Anakin. Well Anakin pretty much wins vs anyone we didn't see him lose against in canon material. Because George Lucas says so.
But then again, it doesn't make a lot of sense to compare movie characters to EU characters. The whole chosen one thing doesn't seem to make any sense when you acknowledge that the dark force/Sithlords exist before and after Anakin.
So there are two ways to settle this..either go with canon statements such us "Anakin Skywalker is the most powerful Jedi. Ever." or imagine the battle between Revan and Anakin yourself. Take a look at how the characters are portrayed to determine their power.
That said, I believe that Revan was more capable than ep 3 Anakin in almost every way.