I kind of want to see Guardians of the Galaxy. Which is weird, because I don't really like the Marvel movies very much. Partially it's Chris Pratt, but it's also hearing that it's "goofy." I like goofy superhero movies more than "gritty" ones.
It's not really even a super hero movie. It feels the least like a Marvel movie than all of them (though there is a villain and all of that).
It is a goofy, funny, all around enjoyable summer blockbuster that's only real tie to superheroes is the Marvel logo and some minor plot points involving rocks.
Then again, we are, in general, well past the point where just slapping the Superhero label on a movie does any real justice to actually describing it (it's like thinking of Animation as a genre). Point is, it's a good movie, definitely the best of the summer.