Huskies, Alaskan Malamutes and Chows have bite history? I've never heard anyone tell of being bitten by one...
I'm not familiar with Presa Caranioes, and Staffordshire Terriers, but I still don't understand why they don't base it more on history. Does the dog have a history with aggressiveness or biting? Or does the dog have more history with proper obiendience training, etc. I've seen some pretty mean dogs that many people would never think of as being mean and some very large dogs with a "bad rap" that aren't that way at all. I liked how the one didn't have a list, just said they looked at the dogs history. Just my point of view, I am worried about this because I have my heart set on a Doberman when I finally graduate and can get a house with a yard. No more apartment living for me! Sorry for rambling!