Finally saw it last night.
Overrated, but entertaining as hell. I'd definitely go see it again.
Tony Stark is just... AWESOME! Loved his entrance to AC/DC in the first fight with Loki.
The Hulk/Thor and Hulk/Loki scenes were hilarious too.
It DID look a lot like Battleship, which kind of ruined it.
Loki is just a (excuse the pun) bad villain. He's like a jealous child, which ruins the story, but I know why they had to do it.
I would have loved to have seen War Machine, but he's not an Avenger, so fair enough.
Good movie, but definitely not even close to the best.