I do have female characters I like very much, though I don't know how I'd write them, as in my major fandom my favored character is male. In original fic I haven't written much, but right now I'm looking at 3 main characters - one male, one female, and one who is basically male but started out nonhuman and has complicated stuff going on there.
I suppose I will find out how much I like to torture the woman :)