After reading 11 pages, I'll make a stab at summing up the arguements.
Pro ban: Pit bulls are bread to be agressive and fight.
Anti-ban response: Proper training can reduce this
My comment: This sounds a lot like "Dogs don't kill people, people who mistreat dogs kill people"
Pro ban: a breed ban is a can reduce the attacks
Anti-ban response: It doesn't work anywhere else. people just get other types of dangerous dogs.
My comment: We ban assault weapons because they are potentially dangerous. If we were to ban assault rifles, people would just use hand guns. If we ban hand guns, people will stab each other. Under the anti-ban logic, we shouldn't ban assault rifles either.
Anti-ban: Dogs will be killed
Pro ban response: better than people
Anti-ban: It's a small % of dogs, other things cause more deaths. This is all media hype. It's a political move.
Although it would be difficult (if not impossible) to implement the ban, there should be some effort made to deal with the situation. Education is probably the most effective solution but again, educating liscenced owners will probably fail as well as the police don't have the time to check every dog for a liscence. I do think that dog owners should be accountable for their dogs actions but this is reactionary, similar to the death penalty.
Any breed can have "good" dogs if trained properly but a significant number (I have no statistics) of pit bull owners in the city ARE NOT prepared to be a good owner, ergo the large number of pitts and associated breeds in shelters. Having had to put down my last dog, I wouldn't want to see the pitts in shelters put down but I don't want any genetically dangerous dog that was mistreated or poorly trained before going in to come back out and be owned by the family next door or the drug dealer down the street.
My last question for owners would be "Why do people choose dangerous dogs over other breeds?" If the dog is bought as a guard dog, there is clearly intent to have a dangerous dog. If it's for the image, will the dog be thrown out with the bell bottoms? I don't see any other reason to own a pitt or a rotty.
I don't know what would be a perfect solution but I would rather have the government attempting something instead of just hearing reasons why nothing will work.