I prefer girls.... They don't pee on everything, they don't try to root everything & they don't embarrass you by sitting licking their lipstick in front of Auntie Mabel. In my experience they are a bit easier to train & slightly less instinctive too.
I like my male dog, but man, the boner licking, and his obsession with boobs is embarrassing. And he's really dumb and clingy. I love my females. I spayed them before their first heat. They also seem to have more common sense than my boy.