Chairman Miaow said:
I honestly can't think of single good reason to, for me, all it would do is spoil the immersion as I'm NOT a girl.
Why do games have to be about immersion? I prefer Pac-Man to Call of Duty so playing a female character helps create that feeling that I'm playing a game.
Also, a lot of the male characters in games are over the top and macho - Gears of War, God of War - and I'm not that sort of guy. Most of the girls in games are written by guys - Lara Croft, Commander Shepard, Jill Valentine - so they're fairly masculine kind of females anyway. Even though it's not my gender it comes closer to my personality than a beefy meat head like Marcus Phoenix.
I don't mind Gordon Freeman because he shuts up and lets me be me. I've just realised that if they made female protagonists for GTA I might go back to playing that series.