I'd watch any movie with Groot and his intellectually stimulating situational observations.
Dude, because we went to the movies last weekend the above will more than likely make it to the silver screen & could possibly not suck. Joss Whedon is truly the king of the nerds!
As for which Hulk scene was best, I don't think it really matters because a movie with the Hulk in it not only was pretty damn amazing but even with all the other cool stuff Hulk smashing was the coolest stuff in it. Not only that, but after two movies of varying success (I think Ang Lee made the better movie overall, but Norton's was more entertaining. Kind of like how I now feel about The Dark Knight vs The Avengers now) this
(Avengers) version of the Hulk is just about the best Hulk/Banner you could hope for.
My fiance didn't really "get" what Banner meant when he said "That's my secret...I'm always angry." She thought it was a one liner, but it really implied a lot when you go back to his conversation with Stark (in front of Cap) back in the lab. Stark asked him what his secret was & it turns out there isn't one. He's accepted it & can now Hulk out at will (Provided & Magic Staff isn't messing with him before dropping him a couple stories on his face. Oh & in life or death situations, Hulk wins whether Banner wants him to or not). He can't control the Hulk, but he can somewhat direct it. Awesomesauce.
"The Rich are there to take all of the money & pay none of the taxes, the middle class is there to do all the work and pay all the taxes, and the poor are there to scare the crap out of the middle class." -George Carlin