It's hard to choose c:
My dog's a mutt but definitely part Beagle (she's adorbs) and my SO has 2 Bostons and a Pit Bull. Dogs vary so much between breeds in looks and just in general. The Bostons are crazy but I love them, and the Pit Bull is the biggest cuddle bug you'd ever meet.
One of my favorite breeds (one mentioned above) would have to be the Pit Bull. They're so big and mushy and cuddly and in my experience at least they seem to have a strong sense of emotion and react strongly to the emotions of others, which I find very interesting!