Wow. TDKR is probably the best movie I've ever seen. Flawless all the way through. Well, there was one directing mess-up when Bruce is talking to Lucius. When it shows Bruce, he's holding his cane on the top and sort of playing with it. When it shows Lucius, Bruce is holding the cane by the side and not moving it at all. That's the only mistake I caught.
But other than that, completely flawless. TDK was great, but this movie blew the socks off of it. Every scene was incredible but nothing felt forced at all. Someone said earlier that the pacing was masterful. I can't pick a favorite scene, but I'll say that from the point Bruce climbs out of the pit to the end of the movie, I was completely entranced.
Something I thought that would have been cool is if they made Batman's survival a little more subtle. Maybe 1) an aside in a conversation with Lucius about Bruce's installing of an autopilot patch in the Bat, and 2) a nod from Alfred to an anonymous character in a restaurant (coupled with Batman's theme music coming in). It wouldn't be an ambiguous ending but it would have been subtle and Nolan-y.
Anyway, 10/10 movie. The Dark Knight is 9/10, Batman Begins is 8/10.