I would go with the dog with papers, sorry. I can look back at what produced the dog with papers. Also, there is usually a reason why a dog certain to be purebred does not have papers:
1. The dog or one of its parents was sold on a limited registration. A breeder somewhere sold that dog with the condition that it not be bred. Often times people take a dog with a fault on a limited registration, and for less money and promise not to breed the dog. I do not like to condone such dishonesty with my money.
2. The owner of the dog or the dog's ancestors have been suspended, temporarily or permanently from the breed club. You have to go some to get suspended. Either you have to forge paperwork, or you have to run a filthy, over crowded, and abusive puppy mill. There has to be a reason for the AKC to choose to discard you and all the money you provide them directly or indirectly with registrations. I do not want to give my money to people like that.
3. People who haven't got the first clue about dog breeding, suddenly discovered that there pet dog might be a gold mine. They got the dog without any papers because they didn't know anything about papers, and did not care about them. But now they want to breed their dog, and the bitch ain't spayed, so... They bought their pet dog without consideration about breeding, so their knowledge of the lines and genetics and what need to do in the way of breeding, whelping, and raising a litter are negligible. They do not know how closely the sire is bred to the dam. They have no clue. I don't want my money to go to these people either.
RIP Arwen, CD RN CGC
RIP Whitney, RN CGC
Jenna, RN CGC & Babs, CD RA CGC HIC (not AKC)
Heidi, RA CGC & Tori, RN CGC
SG3 Odessa, SchH1, Kkl1, AD
Ninja, RN CGC & Milla, RN CGC
Joy, Star Puppy, RN CGC
Dolly CGC & Bear