Well yeah, the big problem with superhero women is that their bust sizes are INSANE. Seriously, comic fans have to get used to women who are either (a) flatter-chested or (b) have appropriately-sized spare tires to go along with the cantaloupes around their chests. (As an amateur figure artist this sort of thing annoys me.)

I think Linda Carter had some major wiring to hold her breasts in place in the Wonder-Woman outfit. Most of the others have been pretty flat-chested, so support hasn't been an issue.