Doberman, Boxer, Pittbull, and Rottie owners, or if you don't believe in BSL... please read?

I would respond that a dog is just as he is raised. I have owned big dogs my entire life. My parents dog who was a rottie, just recently ped away. He was 13 years old! The best dog we've ever had. He was sweet, gentle, loyal, good with other dogs, and not aggressive. We raised him to be that way! My husband and I own a Rottie-Boxer/Pitbull mix. He is AWESOME! Great with other dogs, gentle, sweet, good with kids...everything. We have just treated him kindly and nicely and he acts that way in return.