What is your favorite breed of dog?

After watching the Harry Potter series, my mother and I fell in love with English Mastiffs. Not only are they beautiful dogs, but they are known as the gentle giants of the dog world. They generally have incredibly sweet personalities. The only thing that is troublesome about this is that they are huge scaredy-cats. If someone were to try and come into my yard, they'd only be putting a fight up against my Shepard because my Mastiffs will run away with their tale between their legs. They are big softies, but that's what appeals to me the most about them. I enjoy having huge teddy bears.