Double Trouble

Aren't they adorable. They are from the same litter. One is a purebred bulldog from showlines and the other is a boxer bulldog cross. Weird huh? There was an accident at my friends kennel on the very day a bulldog stud was due for breeding. This litter's mother, Pebbles a bulldog, is best pals with the Angelo a boxer. Angelo is Hulda's daddy. Pebbles got away from my friends son. She ran straight over to Angelo. Pebbles was in heat and Angelo is an experienced stud dog. The stud and his owner arrived shortly after this mishap. The AKC does DNA testing to determine parentage if requested. They discussed the problem and decided to breed her to the bulldog and sort it out with the AKC later. They look like bulldog puppies to me but apparently one is not. If I had to take a guess I think I'd know which one I'd pick as the cross. What do you think?