IF YOUR TALKING BOUT LIKE UKC, BKC, AND SO ON IM NOT SURE WHICH IS THE BEST TO BE REGISTERED WITH BUT I KNOW ALOT OF THE DOHS WE GET ARE USUAL DUAL REGISTERED UKC AND ADBA.
i really like UKC I never had a problem with them and not just that but UKC was the 1st registry in the USA to register APBTs UKC was a all pit bull registry when they 1st started