Dish isn't bad, but it offers a lot less than DirecTV.
My family has had DirecTV for 11-12 years now, and their service is great. They even gave me a huge discount on the unit price when I bought an HD DVR this past December. Their HD looks phenomenal, too. MMA on HDNet and Versus (as well as Spike, obviously) is one of the only things that I can call beautiful, that involves half nude men.