Well I don't know too much about the breeds mentioned in this thread, but I do have a friend that has a Great P. He is the most gentle dog I have ever seen, his name is yetty (bigfoot). My friend has a plce where he boards horses and he has about every other critter known to man as well. There is never a problem adding or subtracting from the herd. I personally have two Rottweilers and I promise you nothing or no one comes on my property that they do not scope out and if they feel there is a danger, well lets just say they take it very personal. I know everyone will say they are dangerous, but I will beg to differ. Mine are as gentle as any other breed until you provoke them. Chris