Didn't have time to read the whole thread, but we just saw this yesterday. Didn't want to do 3D but that's all they were showing at the time we needed to go. The 3D was mostly a waste, except, as someone has already said, for the AF1 scene where it served great effect.
I loved the movie even despite its plot holes (I see no indication that Tony couldn't have had JARVIS send him a suit from the vault earlier, or even have that chest surgery earlier, for example) but while I *enjoyed* the Mandarin twist, I felt that it went against how much of a badass the Mandarin was/is *supposed* to be. Those ten rings aren't just for fashion sense, man! He's supposed to be basically supernaturally powered (though in the comics it's really alien science and tech); way more than a lowly "terrorist".