Bingowings said:

Superman has alien muscles so he shouldn't look too buff.

I thought the swimmer look that Singer chose fitted the character better, Superman sort of swims in the sky...

...

*shudder*

Batman is a human so to do all the acrobatic things he does he needs to be buff.

So arguably it makes more sense if Batman looks more pumped up than Superman but the falsies... I've never liked them since Keaton and I don't like them now.

The superhero thing is not my genre, in spite of enjoying films like AVENGERS and BATMAN '89 quite a bit.

I was into SPIDERMAN comics as a kid.

I have not been a fan of this unconventional casting, though guys like Keaton did very well with their parts. Too much defiance of expectations. I'm sure I would have felt this way as a nine year-old, as much as I would have wanted to see a high budget FX Spiderman.

To me, a comic book superhero should come straight out of Central Casting. They should be ruggedly good looking and built like Olympic swimmers or gymnasts. I think Affleck is close enough.

When I was a kid, I fantasized of being like the comicbook Peter Parker.

I feel certain that those films were COMMERCIALLY successful IN SPITE of their unconventional heroes and not because of them. I must believe that, had they cast the comic book type with equal acting ability, those movies would have done as well or better.