I agree with doing away with the overt sexualisation of women in comics purely because it's creepy and encourages the stereotype of a neeky comic book subculture of basement-dwelling losers. As far as the homogenous representation of women goes however, male superheroes are also represented as a ridiculous homogenous archetype.
http://api.ning.com/files/U420uLHGAB...e_Superman.jpg
Is this realism, or is this an archetypal portrayal representative of a fantasy genre dependent on characters who are, by their very nature, abnormal?