1. Avengers - Easy pick, I get just as excited watching it now as I did when I first saw it.
2. Captain America: Winter Soldier - Sorry, I like supernatural and science fiction elements in my superhero films and Avengers obviously tops this movie in that regard. Still great otherwise.
3. Thor: The Dark World - See above. Color me a sucker for mythic fantasy.
4. Thor - See above again, but less so.
5. Captain America: The First Avenger - Not necessarily brilliant but no complaints here.
6. Iron Man 2 - I don't know if it's because his film series has been around for as long as it has, or if it's because he's the only one to get three movies to himself thus far, or if I'm just tired of the whole Batman/Iron Man/Madmen "My wealth and genius allows me to act like a dick, and I never get called out on it because I always happen to be right" schtick, but I don't care for these movies, mainly because of the protagonist. (He's a billionaire genius who, over the course of three movies, pretty much just continues to be same old Tony Stark, ego and snark and all.) As far as villain and plot goes, this was my favorite.
7. Incredible Hulk - I don't remember much about the movie, except that the Hulk looked and acted more like the Ang Lee Hulk did and Abomination was there (awesome), but I still liked it much more than the other two.
8. Iron Man - I was going to put this last but after consideration I changed that pick out of principal. Shun me if you want, but this was easily the most boring film out of all the picks. With it being an origin story for a character I didn't find myself caring that much about, I both already knew what was going to happen to him and didn't care. Besides, if I want to watch two otherwise normal, everyday people fight each other in custom built robot suits, I'll go watch Robot Combat League. Again.
9. Iron Man 3 - (Soapbox time) Look, I'm not against what was done to the Mandarin simply because of continuity. I was completely and totally fine with the race swapping of Nick Fury and Heimdal because the end result means that the tone of the movies are basically unchanged. But in the case of the Mandarin the fact that they did it is bad not just ~because~ they did it but ~why~ they did it. Don't act like you don't know, they wanted to deliberately shock audiences and make things more realistic. The director himself said he was going for something more along the likes of the Joker in "Dark Knight" and the Col. from Apocalypse Now, and also mentioned how he wanted to surprise audiences. Well that surprise may have been nice for the moment, but now that it's over (except for the cases where it was never a surprise, because it was spoiled or because people looked it up) what we have now is a lack of eccentric, magical sorcerer in a series that could use something more fanciful to lighten it up. It's bad enough that the DC answer to Iron Man slowly transformed his trilogy's setting from an appropriately Gothic inspired city to... daytime New York, but we don't need Iron Man to be any less out there than he already is. Maybe if Marvel and Iron Man's director were comfortable enough to not pander to the audience who thinks any superhero who isn't Batman or Wolverine is a "fag" then we wouldn't have movies like Man of Steel turning what is supposed to be a "Big Blue Boyscout" into a decapitator in a bleak, gray Metropolis.