In all my stories? Main characters or everybody that’s ever come to hang out? Maybe I’m making too much out of this question? For character count, I’ll just say that they come to each story as needed.
In terms of male or female preference, I don’t feel I have a preference. I have stories with both as leads and with both as the hero and/or villain. I’ve written in POV from both a male and female perspective. In one recent story, I have a twisted female mass murderer kidnapped by a serial killer. I didn’t plot this. They both just showed up as interesting people whose paths crossed.