I voted in the half and half category, but that's not entirely accurate. The most accurate answer for me would be, it varies. When I first began playing all character genders matched my own. Currently most of them are the opposite gender, for no other reason than the characters called to me to explore them. Them same thing happens to me when I write a story or play, I often find I do not so much write something as I read what the characters use my hand to write. In the future I'd like to have a campaign with mature players where I explore gender roles and identity more, something inspired by one of my college courses a few years ago that was absolutely fascinating. Basically, when I play a character I play whatever gender the character wants to be, I rarely think about my own gender in the process until the character is done and I decide whether this character will live in the current campaign or a future one, which often depends largely on who I'm gaming with. Always know your audience.