Well, Superman and Green Lantern are about the only two superheroes I'm interested in watching in a movie now. So far, so good.
And I want to see Superman lift heavy things. I want to see him rescue people falling through the air, save aircraft, divert rivers etc etc. That he does these things, and that he's a champion and a powerful protector of people in many ways that have nothing to do with "fighting bad guys" is why he's a bigger and better character than most superheroes.