Get both.
I would have to say, w/girls you can do their hair, dress them up...but you can do that to boys too.
My boys are such cuddle monkeys...my girls, not so much, but they do get jealous! So if I'm kissing Momo, the girls will gang up on me & vie for my attention. Princess will scratch me & do handstands like a capuchin monkey (she also luvs tummy rubs!) & Mimi will rub herself on my leg or something, she's a rubber loll. I do love them all, but I have to side w/the boys!
Plus, I've noticed that Mimi LOVES my dad, he's her person...but the boys don't seem to side w/ any one particular person, they love everyone...but it probably has a lot to do w/their individual personalities too.
I'm lucky, my boys don't mark (knock on wood!). It really helps to have a water bottle or something they can use as an indoor fire hydrant. I have water bottles wrapped in pee paper on top of their pee pad, propped against the wall. I also have the pee pad partially going up the wall to protect it. The bottle keeps them from peeing on the wall. I also have their designated pee areas in the restrooms, they know that's where we ALL go wee wee lolll!