Boy or Girl King Charles Spaniel?

I am gettin a cavalier king charles spaniel puppy soon, next month. Their are someviewings being set next weekend, but before that i would liek to know; a girl or a boy? my family are equally set for one or the other. Their tempermants are round about equally the same, however boys are more obsessed with you than the girls (in a good way?). and also the girls tend to have a nicer face don't they.. :S heelppp ! what would you get? girl or boy?