Don't know where you're coming from, Gramps. Girls are much easier, in my view, when it comes to changing diapers. No Old Faithful syndrome to worry about. And they're also much less "spazzy" than boys.
I'll worry about the teen years later. :-)
About 6 years ago, the young daughters of a close friend "adopted" my wife and I as "grandparents". From our experience with those girls, I would agree with you and add that for pure, unpretentious love and sweetness, nothing surpasses girl children.
--Boot Hill