1. Would it really be that hard to just rename John Blake as the proper name for the second Robin? Just name him Tim Drake, and it would have been fine. I could get over the difference in Tim Drake's storyline because it's really just a very minor side plot that shows up at the ending. Sidenote for you non-comic book geeks - eventually in the Batman comics the original Robin, Dick Grayson, left and became the superhero Nightwing. Tim Drake was a college student who discovered the true identity of Batman and asked to become Robin. He was trained by Bruce Wayne until eventually getting his approval and becoming the new Caped Crusader's sidekick Robin.
2. I thought Bane himself was a fine choice for the villian, although I wish they would have kept SOMETHING from his actual comic book storyline into the movie. In the comics, he was a super thin nerd born in a prison (part of which Nolan led you to believe happened in the movie) who had a science experiment performed on him that gave him the superhuman strength. Except in order to have the strength, he has to get a serum injected into his body - this is why all of the pictures of Bane have a [expletive] of tubes coming out of a backpack that are attached to his arms, back, and head. He was never trained or affiliated with the League of Shadows, nor was he ever Talia al'Ghul's bodyguard. He was able to figure out Batman's identity, and at one point broke his back in a fight (okay so that's the one thing that Nolan incorporated into the movie).
3. Anne Hathaway did a superb job as Catwoman. Not quite as good in my opinion as Michelle Pfeiffer did, but still an excellent job.
4. Re: the fusion reactor. Even overlooking what JL had mentioned, my buddies and I (who are also engineers at the nuke plant with me) got a big kick out of Dr. Pavel just reaching up and pulling out the "core" and then putting it in a different box. One buddy jokingly asked, "Where's his dosimeter?" Another asked, "Why do movie producers insist on a bright green glow for a nuclear reactor? The core glows blue
5. I would have LOVED to see Killer Croc make an appearance in the sewer scenes. That would have been absolutely terrific.
Overall, like JL said, it was a good popcorn flick that I enjoyed watching. I don't know that I would see it again in theaters, but I own the first two, so I will likely buy this one on BR once it comes out to complete the trilogy.