I've never given it much thought. I've always had males. My mother had a female GSD when I was growing up but I think that's the only female dog owned by my family. I don't think there was ever a preference. You know, now that I think of it....My father has 7 brothers and 1 sister. My parents have 7 grandsons and 1 grandauther. Male dogs and 1 female...hhmmm, maybe there's a hidden message here....