American pitbull terrier vs. American bullies aka over sized hippos. whats your preferance...and why?

I dont get how a lot of these backyard breeders are claiming to call these over sized hippos American pitbull terriers. Most of them look like they can only run half a block and look so uncomfortable carrying all that weight. their has to be some serious health issues involved with this new fad of a breed. Clearly not a TRUE APBT.