In both cases comics and video games, they just haven't caught up. They are jut beginning to market to women, and most of the time don't have developed female characters. I know in comics the women are created to be pleasing to a male audience, and though you can often pull out awesome feminist traits they often get lost. The same can be said for female video game characters: Croft or Valentine.
This all stems from an article I read on Salon.com, "A Real-Life Video Game Heroine." The article discusses the future of gaming and home women could and should play a role in it, the interview was conducted with Mary Flanagan. Not only should games in designed for girls, but women should become involved in the programming. Can't say I disagree with that.