I am a huge comic fan, especially of Marvel. But, on the issue of the Avengers movie, I am torn.
Here's my run down on the movies leading to the Avengers:
Iron Man 2: I have high hopes for this one. Assuming that it stays in style with the first Iron Man, this movie should be good to decent. I like the idea of War Machine, and the Black Widow making their first appearance in uniform.
Thor: This movie is problematic for me. I like Thor well enough, and he definitely belongs with the Avengers. But, he's a mythical god. Iron Man was believable because of the technology aspect, I spoke with several people who loved the Iron Man movie and had no clue he was from the comics. Hulk was already popular, despite this, the first attempt -Ang Lee's- sucked, making the significantly better revamp -Ed Norton's- go relatively unnoticed. A movie about Thor could go over well, it will take a delicate touch to get the mainstream audience to like this movie. Furthermore, in order to be successful, it would almost have to be a "dark" version. Think along the lines of "300" or "Gladiator".
The problem is, assuming the movie is successful, it would be virtually impossible to integrate the "dark" Thor with the lighter Iron Man.
Captain America: It's supposedly going to be set in WW2, which again, requires a "dark" view in order for the mainstream audience to accept it. Also worthy to note, Chris Evans is not known for his "dark" acting ability. You also have to overlook the fact that he's already played a super hero. ( The Human Torch).
( Side note: Ryan Reynolds is supposedly slated to play both Green Lantern and Deadpool, with Green Lantern coming out first, if Green Lantern is even mildly successful, there won't be a Deadpool movie, at least, not with Ryan Reynolds, I am betting there won't be one at all, which makes me very sad)
In short, Captain America and Thor both require a style which will not integrate well with an Avengers movie. If either movie flops in the box office ( which it is likely that at least one of them will) you can kiss goodbye to the Avengers. Despite the massive amount of comic fans, myself included, who will see these movies no matter what, it's mainstream audience who will dictate whether there is an Avengers movie.
As cool as it would be to see the earth's mightiest heros on one screen, there is a slim to none chance of it actually existing, and an even slimmer chance that it will actually be good.
It almost hurt to write that. . . damn.
I was really looking forward to the Avenger movie too.