Not that it maters, and not that it hasn't been said, but I have always seen Ric Flair and Bret Hart on the same level. Just as everyone else here, I can only speak on this from the viewpoint of a fan since we've never been in the ring with either of the guys. From just a visual standpoint though, I've always thought that the work of both Flair and Hart were right up there together.
Both of the guys wrestled the same type of match over and over again for the most part, especially with people of thier same size. When facing a larger opponent they would change things up a bit to look like an underdog and do a slightly different match, which is obviously needed, and they both could carry people of lesser talent to pretty damn good matches.
When talking about the overall better performer however, I give the nod to Ric Flair only because of his more in your face character, interviews, mic skills, and in my opinion just because he had the look and the character of a true champion down the best out of the two.
When it comes to flat out skill though, yeah, I'd put them on the same leval. Always have, and always will, regardless of the immature bitching and crying that goes on between both of them.