If you know me, you know that Avengers is one of my favorite movies. It's my default when I want to watch something and I don't know what. I've seen it more times than I can count and I love all of the Avengers.
But from a writing standpoint, Tony Stark is my favorite. Out of all of them, he has the biggest character arc. I love going back to the first Iron Man and thinking about how much he's changed. Even his way of thinking from the beginning of Avengers to the end changes so much. He evolves. He learns. He realizes the world is bigger than just him. He makes mistakes and he fixes them and he acts like Tony Stark, but you know that he cares.
He doesn't just walk away from huge traumatic events like they didn't happen. He almost died in Avengers and that affects him. He has panic attacks. He can't think about New York without having one. He struggles to deal with that, struggles with the panic attacks and the nightmares, because he's Tony Stark and he wants to be strong.
And even though he's never really had a great track record with women, he tries for Pepper. He loves her and he tells her that. In his last moments in Avengers, he tries to call her because talking to her is the last thing he wants to do.
And he's willing to wipe his slate clean and start over, literally and figuratively. After all that he's ready to move on with his life.
I really hope that Robert Downey Jr. and Marvel are able to come to an agreement and he comes back for Avengers 2. The movie without be the same without him and I'd love to see where he comes out of Iron Man 3.