The Labrador Retriever is the nation's most popular dog -- for the 22nd straight year. That's according to the American Kennel Club. The German Shepherd still commands the number-two spot. The Golden Retriever comes in third and the Beagle is now ranked fourth. The rest of the top 10 includes some smaller pooches:  Bulldog, Yorkshire Terrier, Boxer, Poodle, Rottweiler and Dachshund.