I have had many dogs through the years, and I am into puppy rescue right now. So I see everything - mixed and purebred. I would have to say that by far, my favorite breed is a Heinz57. That is to say a little of this, a little of that, and a little more of something else. Right now I have a 8 year old Rhodesian Ridgeback mix and a litter of Chihuahua mix puppies. If I had to mention a AKC purebred as my favorite, though, I would say a German Shepherd. Fabulous dogs!