What type of dog do I want to get, based on these "requirements"?

I think a rottweiler would be perfect,however,rottweilers need a tough hand when they're young to be the lovable teddy bear when they're grown. I wouldnt go with any type of herding instinctive breed because it may nip at your child as she runs. I've always loved a black/chocolate/or yellow lab for a family.