Tougher regulations for owning PitBulls might be a better option than a outright ban because like many have said it all starts with the owners.
Most people using this arguement have never had a son, daughter, niece, nephew or anyone close to them ever get attacked by a pitbull. Or witnessed the damage first-hand.
I'm still 100% for a ban (and i live in a province that has already done so) and i'll go even further and say that it's a breed of dogs which should be completely radiated from the planet.
I don't disagree with the point that the owners are the problem. But the problem is that there have been many attacks where the owner had nothing to do with the dog's erratic & unpredictable behaviour.
That's why i've never called for bears to be radiated. Their behaviour is known and predictable. We are all aware they should be avoided. But the problem with pitbulls is that they are extremely unpredictable and when they do attack, their attack may often be a fatal one.