Gotcha with the name. How's Fluffy? The best part about the horse was that his name was also his descriptor. He loved people.
Booter is right about the bloodlines. Some are really bred for fighting. But, honestly, some of my best dog experiances have been with the bully breeds- my worst with labs. If you weren't smarter than the dog, I could see him maybe being a problem, but I don't see that as a problem for you Just make sure he's really, really well socialized.