Like you said, overrated is a stretch. Maybe he has been a little more hyped than he should be. I've been one of the guys hyping him, because he just looked so good against Nog and Brock. I thought he'd beat JDS. But if you really look at what hes done its not nearly as impressive as JDS. Big Foot is his best win imo, Brock and Nog are also good. In those moments he looks unstoppable, but at other times he shows weaknesses on the feet. He isn't consistently dominant the way JDS have been.
I still have it almost even in the rematch, maybe 55-45 for JDS.