I was going to say the Ravens but when I thought it through, its really mostly Ray Lewis that makes them hateable. Harbaugh seems OK, Flacco seems fine and Ray Rice is good. The Ravens will be much less hateable when "Reverend/Obstructor of Justice/Mid-Field Dance Instructor" Ray-Ray Lewis is retired.
So we move on to Oakland, immenently hateable but they've been so bad lately its hard to "hate" them, hate for the Raiders has turned to pity and disgust.
Then Dallas.....nuff said. Really, who "doesn't" hate them. hahahaha!