Ok, gonna try a different kind of list this week. Instead of doing a top 10, I'm going to go through each of Marvels Stage 1 and 2 films and find the problems. This is going to be interesting.
Iron Man: Very stupid terrorists
So, can someone explain to me how Tony Stark and Yinsen managed to build a near 7 foot tall suit of weaponised armour without anyone noticing. Yes I get that they were hidden from the camera, but did no-one think to go and, I don't know, check on their progress every once and a while. Did the guy who brought them food even bother to open the door? Because if he did, he must have been pretty blind or not even walked into the room. I know that this origin is practically the same as in the comics, only set in a different war, but still...
The Incredible Hulk: Sequel baiting
Lesson to Marvel here, don't sequel bait unless you actually follow through. In this case, don't show Samuel Sterns becoming The Leader, unless you are actually going to have another Hulk film. What we now have is a cliff-hanger that is unlikely to be resolved, unless he shows up in Agents Of Shield, in which case the majority of people still aren't going to see it resolved because not as many people watch the TV show as would watch another Hulk film.
Iron Man 2: What is up with Marvel's villains?
So, there is a worrying trend in Marvel films that started in The Incredible Hulk and has continued to this day (with one or two exceptions), but this film is where it really gained traction. They just aren't very good. Ok, Mickey Rourke is pretty good at the start of the movie, but he ends up being just another guy in a suit and his death was pathetic. However, the real problem here is Justin Hammer, who, in the comics, is a pretty real threat to Tony Stark. In this film however, he is a one note joke that isn't funny. He's so much "not on Tony Stark's level" that he isn't even on Pepper Potts' level, which is sad considering the comics book character.
Thor: Physics does not equal chemistry apparently
Ok, so I'm pretty sure I'm not alone in saying that Natalie Portman isn't all that great as Jane Foster. She is easily the weakest link out of all of the characters in this film (although, to be honest, this film does contain Loki, so the bar is pretty high). The story she and Chris Hemsworth have to tell is so hideously crammed in that it has little to no impact and the two have very little in the way of on screen chemistry to make what story there is worth the audience investing in.
Captain America: Character arc. What character arc?
Anyone else notice that Captain America peaks half way through the film? In terms of the character, his whole character development is going from a scrawny outsider to a symbol of leadership and freedom. This all wraps up after the prison break, meaning Steve Rogers entire character arc is done after an hour. After that it's just a case of waiting for the inevitable plunge into the Arctic sea, meaning that the climactic battle with Red Skull doesn't feel as climactic as it should.
The Avegners: So, explain Loki's plan to me again?
Look at this mans face. This is the face of a troll. What this man basically does throughout this entire film is wing it and make everyone believe he has a plan. Because he obviously doesn't otherwise we wouldn't still be arguing over what it was years after the film came out. So he wanted to be captured so he could destroy the Avengers from within before they really got started. But then all that did was bring them together, so that was a great plan. But then did he plan that as well, so he could escape Thanos and get back to his main objective, Asgard? No, now you're reading too much in to it. What it actually is, is that Joss Whedon really needed a good reason to unite the Avengers so he used Loki and made up a half baked plan that kinda made sense and filled the rest of the film with so many explosions and jokes to make sure nobody noticed.
Iron Man 3: You already know what's coming here.
Ok. Who honestly thought that this was a good idea? You take the recognised arch-nemesis for the superhero you are making a movie for and you turn him into a front, an out of work actor who is just playing a role to cover for another persons personal vendetta against said hero. Yes it was a legitimate swerve, but then you get a fan reaction so bad that you have to retcon the whole thing afterwards. You done messed up there guys.
Oh and while we're on the subject of Iron Man 3, whose idea was it for Tony Stark to have surgery to remove the shrapnel and, for all intents and purposes, give up being a superhero at the end of the film? Did they all forget they had another Avengers film coming up? What was the point?
Thor 2- Dark World: Well, this movie wasn't much good was it?
This film had all of the problems that its predecessor had, a tepid story, no chemistry between the two leads, and then added more problems on top, a really bland villain played by a great actor who was obviously only doing it for the pay check and then misusing a great supporting cast member by making him run around a historic monument in his underwear. Of course, Loki was easily the best thing about this film, but even he got less screen time and was limited by the story they were trying to tell. Still, great Cap cameo. That about sums that one up really.
Captain America- The Winter Soldier: Time to nitpick
Ok, I am going to be really nitpicky about this film, because I can't think of too many problems. However, there is a problem that both this film and Agents of Shield share and that is that they've fallen into the trap that the comics have, which is resurrecting characters without any decent explanation. Both Agent Coulson and Nick Fury die (or are presumed dead in Fury's case) in the films and are later resurrected (Coulson literally). Now, there is a way they could have done this that would have kept with the comics without needing to resort to the Jean Grey method, and that is Life Model Decoys. For those of you who don't know, LMD's are exactly what they say on the tin, they are decoy robots for Shield Agents, specifically those high up in the organisation like Director Fury. And before anyone says that's too outlandish or unrealistic, they have a Helicarrier. How is a flying aircraft carrier any more realistic than a robot? Both are certainly more realistic than someone being stabbed through the chest and being revived.
Guardians Of The Galaxy: Nova Corps nerf.
Ok, ok, Ronan was terrible, probably the worst MCU villain after Malekith, but I've said that most of the MCU villains aren't all that great, so rather than reiterating the point, lets talk about the Nova Corps. Why did they make Xandar a galactic superpower to compete with the Kree? The Kree hate the Skrulls (although, who'd want to save them from annihilation, plus Fox probably have the rights to them) and Xandar is just the home to the Nova Corps, who are Marvel's rip off Green Lantern corps, not a planetary police force. They encompass numerous alien species, much like the GLC, and aren't solely made up of humans. Plus they have amazing helmets (as in the protective head gear, not the other thing). Why they had to make this alteration is beyond me, because Nova, the character, is one that they could have brought to the screen at some point, maybe in a future GotG film or in a TV show, but they can't now because it wouldn't make sense for the Nova Corps to enlist a human from Earth when they've got all the humans on Xandar.
Avengers- Age Of Ultron: Shipping
There are a few problems with this film. There is the fact that Ultron's plan would have actually caused the global destruction he was aiming for (according to scientists who know about these things) and the whole Hawkeye's family thing doesn't have any real basis in the comics, but those aren't really big problems and don't detract anything from the film. However, the relationship they try to get going between Hulk and Black Widow does detract from the film. It is good to see the two characters develop, but it feels forced, like it's only there to get the characters to develop and feel more human, rather than because it was a natural progression from where they were at already. This probably isn't helped by the aversion Marvel have to doing another Hulk film, but Black Widow was in Captain America 2, so she had appeared since Avengers. Sure she wasn't the main character, but she still got development. All of the character development in this film that wasn't Tony Stark just felt like it was tacked on because they didn't develop these characters much in the previous Avengers film.
Ant Man: "Comedy" sidekicks
Can someone explain to me why this guy was in the film? Please. I'd love to know, because all he did was be annoying. The other two guys weren't much use either. Their only reason to be there was to be the catalyst for Scott Lang to break into Hank Pym's house and steal the Ant Man suit. After that they weren't needed, but they still just hung around, spouting unfunny jokes in a really annoying fashion. I can't say I enjoyed this film all that much when compared to other MCU films. It's probably only just above Iron Man 3 and Thor 2. And the comedy sidekicks are the reason. They didn't bring anything to the film and the film would lose nothing if they weren't in it to begin with.