You WANT a breeder who picks out your puppy. They live with these pups 24 hours a day and know them very well by 8-10 weeks when they are ready to go home. A good breeder knows her families who are buying puppies and will match the right puppy to the right family. While doing it any other way works too, the dogs and the people adapt to who they got, a more perfect match is the dog that suits your family 100% because the breeder took the time.