I'll cast another vote for watching them in order. If you want to condense your list, skip IM2 (although you've already watched it) and Thor 2 as the most forgettable ones. I actually found I had a much bigger appreciation for Cap 1 having recently rewatched it, i.e. after having seen both Cap 2 and Avengers. He works a lot better knowing what he'll grow in to, rather than starting where it started, if that makes any sense.
Thor 2 only shines in the scenes shared between Loki and Thor, everything else is either forgettable fluff or downright grating (the less said about a certain Natalie P. and Kat D. the better). I'll give credit to Star Wars as performed by flying Viking ships though, that credit is honestly earned. I actually enjoyed The Incredible Hulk and was disappointed to not see Edward Norton return. Of course we learned that it was his own fault and hindsight allows us to see that Mark Ruffalo basically improved on him in every point. But the character work done by Norton is enjoyable, although again, the rest of the movie is quite forgettable. You?ll find that that goes for all of the Marvel movies, where plot is the least interesting thing.
IM3 stands out as a character piece on Tony Stark, Cap 2 subverts everything you learned about the Captain and the MCU up to that point and Guardians of the Galaxy works because it drops all pretense and is just a fun romp elevated by an amazing soundtrack. So in my view, skip IM2 and Thor 2, perhaps The Hulk. Cap 2, IM3 and GotG are the standouts, the rest is good as simple entertainment...
Thor 2 only shines in the scenes shared between Loki and Thor, everything else is either forgettable fluff or downright grating (the less said about a certain Natalie P. and Kat D. the better). I'll give credit to Star Wars as performed by flying Viking ships though, that credit is honestly earned. I actually enjoyed The Incredible Hulk and was disappointed to not see Edward Norton return. Of course we learned that it was his own fault and hindsight allows us to see that Mark Ruffalo basically improved on him in every point. But the character work done by Norton is enjoyable, although again, the rest of the movie is quite forgettable. You?ll find that that goes for all of the Marvel movies, where plot is the least interesting thing.
IM3 stands out as a character piece on Tony Stark, Cap 2 subverts everything you learned about the Captain and the MCU up to that point and Guardians of the Galaxy works because it drops all pretense and is just a fun romp elevated by an amazing soundtrack. So in my view, skip IM2 and Thor 2, perhaps The Hulk. Cap 2, IM3 and GotG are the standouts, the rest is good as simple entertainment...