Fucking everything, everything was perfect. Whedon handles an ensemble cast like a mad-genius. The Hulk as he always should have been! – and I really enjoyed The Incredible Hulk. Gave me what I felt I missed from Thor and Captain America: The First Avenger, while making those movies better by their extension to this beast. The scene at the very end of the movie got a good-natured "Fuck you, Joss Whedon." from someone in my screening.
So since I haven't read many of these comics, who was the villain after the fancy macro-credits?
Also "Tiny god." was the best Hulk moment ever.