I always thought Spiderman 1 was kinda lame, but Spiderman 2 was very good. Spiderman 3 was one of the worst movies ever made.
When I think of the best comic book (superhero) movies, I usually think of:
The Dark Knight
Batman (Tim Burton)
A lower tier would include:
There may be some I'm forgetting, but things get very ugly very quickly. Fantastic Four, both Hulk movies, all 3 Punishers, Wolverine ... ugh.