Originally Posted by spidermanJLA!~
Should Superman's musculature even matter? He doesn't need muscles to be super-strong.
Exactly. That's why I prefer him to be more slender in the comics and not like the McGuinness photo you posted.
On the flip-side, film is a different medium and I think requires different tactics to sell the character. In that instance, I think the muscles help. And since the character is being presented by a person and not an artist's pencil, then the likelihood of the muscles being overdone is low.