I have to say the Superman movies were superb and set the Genre.
Hulk- that one set the bar a little too low. Haven't seen Captain America, but can't be as bad as Hulk. Actually, not all of Hulk was that bad. Way too much storyline and not enough action- actually, the action was there, but since most of it was CGI and looked like it was CGI, it just wasn't very good...period. Although I do have to say, the bad guy (at least his power)in this movie (his dad, I think) is the most awesome bad guy (I think) in any superhero movie- very original to me.
Spiderman- really good movies. Second one went a little too fast and slow. The second one is still introducing him using the "Spiderman no more". It was WAY too soon to use that storyline. That should've been in tyhe third or even fourth movie. And they're already brigning the Green Goblin back? Good movies none-the-less.
Fantastic 4- all around awesome. Could've done tons better, which is my only complaint. So if the movie was very very good but could've been so much better, that means even though it was "crappy", it was still good. Excellent movie, I'd vernture to say my favorite.
Batman- Yet to see Batman Begins, but the first three (Keaton, Keaton, Kilmer) were excellent. The fourth just killed it totally. What were they thinking? Yuck.