HARDER TO TRAIN-Rottweiler, is the first thing that strikes you. They are incredibly gorgeous canines, yet they have a frightening aspect. They have a nasty image, although they are one of the most devoted dogs to their ownersPit Bulls, have a reputation as a fighting dog, and they have sadly been bred for that purpose for generations. They are also more difficult to teach, while being one of the most fiercely**.AND MORE....****EASIEST TO TRAIN-**Havanese, the only dog breed native to Cuba, are cheerful little dogs with a spring in their step and a gleam in their big, brown eyes. German shepherd, dogs are noble, hardworking, devoted, and clever dogs. They make excellent guard dogs as well. Of course, in the proper environment- AND MORE ......