well I do believe that Revan is not so powerful in the force as creative uses of the force. If a force user can use only one force power, If he is truly creative and knowledgeable, he will use that force power in several different ways.
For example, Telekineses is a normal force power to master. There are three force power trees that are solely base on Telekineses, Force Kill, Force Wave and Advanced Throw Lightsaber.
I do remember somewhere in Kotor 1 or somewhere else, that Even Exar kun is stronger in the force than Revan.
I do think due to Revan's intelligence, I do think he developed an arrogance streek. There is a major difference an accompished Jedi and a Mary Sue. At least in my eyes.
Revan is an accompished Jedi.
Where as if He was a Mary Sue, He would defeated the Mandalorians and the True Sith Empire with the Jedi Council permission in one battle without losing anyone. And Carth, Juhani, and Bastila would be madly inlove with him/er regardless of gender because he would be so fraking beautiful and charming. Also everyone else would be too. Also there will be no need of the Star Forge.