[RogHammon]

AmStaff ... while they ARE athletic and wonderful dogs ... are first and foremost, showdogs. That is the breed purpose. At least I would imagine they are showdogs if you get one from a kennel website that competes heavily with AmStaff and you expect to do well showing.

A UKC APBT ... could be ANYTHING, so you need to know what you want, expect and what to look for. The AmBully UKC registered dogs haven't historically done well in UKC sanctioned events.

Edit: I see Kady already said basically the same thing about the UKC