Is there any difference in trainability between male and female dogs? I understand housebreaking can be somewhat tougher with a male dog, but other than that is it all just down to preference and the dog itself?
In general, males are goofier and females are more serious. Additionally, males tend to be slower to mature, and testosterone-based hormonal behavior problems are seen as “more annoying” than estrogen-based ones. I’ve heard from many people with far more experience in dogs that typically two boys will rumble for the sake of fighting, and will stop when there’s a clear winner (though most will say that the second time that pair fights, that will be until the death), but two girls will fight because it’s *personal* and frequently won’t stop a real fight until one of them is dead. Keep in mind most of the people I talk about dog fights with are terrier people, so it may be different in different breeds, but that seems to be the generally accepted theory on aggression between the sexes.