It had great action, great special effects, some good character development, and great characterisations, the Hulk being the prime candidate for that.
However, in the end it turned into another: "superheros defending the 'helpless' humans from an alien threat hell bend on destroying the world/ or taking over the world, delete as appropriate".
The aliens were aliens, nothing more, Loki was pretty good. But ultimately I feel like the big bad who is rumoured to be Thanos will be another dictator trying to take over the universe.
I know I might be being a bit harsh, but well The Dark Knight spoiled me. The Joker and Two-Face were villains who transcended anything that had been done before in comic book movies, maybe even in any movie. TDK wasn't perfect, but we're coming into an era now where the villain is just as important as the main character. This will be evident in the case of the Star Trek sequel. Thats how Bane was done, thats how the best villains will be done. Avengers was a great action movie, more than that I don't think so.
