If you include all gamers of the broadest definition of video games, including free online point-and-click ultra casual stuff, yes, women are more than half because that category definition is as wide as the world, basically. If you mean gamers as in MMO, PSN and Xbox Live, etc., women are possibly about 5% less than half to date. One thing about uber-muscle male characters is that they are probably meant to appeal to both sexes for different reasons, role model for one and sex object for the other. Hyper-sexy, jiggly female characters are so ubiquitous that straight females probably only register them as just another annoyance that one deals with to play an otherwise good game. Sometimes the characters' hyper-sexy pandering allegedly to appeal to young straight males is downright hilarious, at least for a lesbian like me. I enjoy playing TR/Lara Croft games, but her tits and ass have always been characters in their own right, just like Jessica Rabbit's.
I guess you have a point, at least about some female characters. But keep in mind, the line between "sex object" and "female power fantasy" is rather blurry. Power fantasies aren't just about kicking ass. More often than not, they're
also about looking good doing it. They're wish fulfillment, with everything that entails. How many men want to be the Thing? I'm pretty sure most guys don't think being made of orange rock is an acceptable tradeoff for superpowers. Batman, on the other hand, is nowhere near as powerful, but I think most guys would rather be him than Ben Grimm.
It's the same for women. Bayonetta, for example, was created by a woman, and plenty of women adore her. This isn't just true for video games. I looked up the statistics. Many, many sexualized comic book heroines have dedicated female fanbases.
And it should be taken into account that there
are female "eye candy" characters who look legitimately tough. Cammy White, for example. She is
jacked. Where, exactly, does she fall? She's got too much visible musculature to fall into the stereotypes of sexualized women, and yet plenty of men find her attractive. Then again, said musculature breaks the mold when it comes to all too many female characters in video games.
Don't get me wrong, I wouldn't mind seeing less sexualized female characters in mainstream games. But I'd prefer that this involves creating new characters, rather than changing existing ones.