5. Star-Lord
Marvel StudiosDespite the fact that Rocket Raccoon currently appears to be the star attraction of the movie, the fact is that it is Chris Pratt who is meant to be the main star of the imminent Guardians of the Galaxy movie, given that hes the titular teams leader, the only character who is appearing as himself (i.e. not in make-up or as a CGI character), his name and face are headlining posters and so forth, and he seems to be starring in most of the trailers. What Chris Pratt has going for him is the humour element. Part of what has made Tony Stark so popular is the fact that he is charismatic, witty and frankly rather hilarious. If Pratt's Star-Lord can emulate those traits - even to a fraction of the level that Robert Downey Jr. has done with Tony Stark - then the character could quite easily move to the top of the pile and become the new face of the Marvel Cinematic Universe.