I liked IM1 over Spider-Man 2, but I was not a big fan of Tobey's characterization of Spidey anyway...
That said, all the movies you named came after IM1 except Spidey 2. At that time period, Iron Man 1 was a top 3 comic book movie at the very least and it was NO LESS than an 8/10. Fact is, all these movies have raised the bar because they are ALL great, that's why this comic book movie wave is great for the movie and comic industry and artistry as a whole. And the competition is good because it means no half stepping on either side will be tolerated.