I prefer males, and to tell the truth, I've never owned a female dog! I'm not sure why, except that my dad has a preference for males and has never really liked females...I do notice that female dogs I know tend to be hyper and skittish (not all, but some) and Blaze is a pretty laid back Border collie, so I'm happy with him. But it really doesn't matter to me, and I like both males and females!