Re: Let The Hero Lose.
Joss Whedon recently blasted Empire Strikes Back because he said that the story isn't over until the good guys win, so the movie is incomplete (so, a rip-off, I guess).
My dream for Guardians of the Galaxy was that Thanos would kill most of them, with the one survivor fleeing to earth, trying to get there before Thanos attacked. In the first Avengers, the team ought a guy who lost to Thor using a weapon that Captain America had already defeated. Imagine if part 2 was about a guy who had just slaughtered an entire team of heroes and killed billions of innocents...now THAT is a threat!