I'm not even that big of a fan of Marvel flicks. The best one I thought was Iron Man (8/10), with the rest in the 6-7.5 area. The Avengers, on the other hand, was a film that simply took pieces of the film that worked, and made it into one grand movie.
That's why I simply love this film, for the fact that it knew how to have fun, bring spectacle, as well as some potent drama into the mix. With a great shake-up like that considering the majority of "mehh" from last year's summer films, The Avengers was a breath of fun fresh air for this schmoe.