I saw it at IMAX, three rows from the front, which was very fun. The floor shook when the bat-bike roared into action.
TDK was gratifyingly well plotted and well EDITED (what a friggin' relief: first blockbuster all year I can say that for!), and I appreciated not being left with too much time to dwell on the more implausible aspects. I did have a few nitpicks but they didn't interfere with my overall enjoyment, and I was blown away by how truly chilling both the Joker and Two-Face were. Heath's Joker was, as everyone keeps saying, incredible--and I honestly thought going in that it had been over-hyped and wouldn't be that good. The creepiness and strangeness and sense of chaos were the things I liked the best. There were so many amazing scenes--I was actually glad it was so long.
Dear people that told me to watch The Middleman: THANK YOU! It is awesome and cute and adorable and I have only seen one episode and must watch the rest straight away. :D