I agree with Ned, if you decide you need satellite, Pick the plan you like the most,, In the past DirecTV was more into sports and Dish had things I like better so for me it was Dish... (I am not a sports fan, but am into Science, NASA is on Dish).
There are other considerations as well.. Do you want a DISH type antenna or a "Dome" type antenna.. Dishes come in two flavors, Ground mount and roof mount, all are Stationary (Use only when parked). Domes in 3 flavors, Roof mount "In motion" Roof mount "Stationary" and ground mount/portable.
Domes also come in single and dual types (Dual means TWO outputs capable of feeding 2 or more receivers or multi-channel DVRs, Singles can only feed one receiver or a SINGLE channel DVR)..
DirecTV, with a dual dome,, (NO HD However) uses a single satellite... Domes can only see one at a time, and thus it works 100%
DirecHDTV is not compatible with a dome.... Only the NON-HD channels come in, not all receivers will work with a dome.
Dish: uses 3 sattllites, 2 for SD one for HD (I suspect some HD may be on the first two)
SOME domes can change targets under receiver control, these domes work with DISH and a SINGLE receiver (like a single dome), but with TWO receivers, if you have a conflict over which bird to target, somebody looses.
Also.. DISH HD actually uses 3 of six satellites, If you are in say Myrtle Beach SC, you may need to see the other arc,, The Tailgater from DISH can not do this, the Winegard Pathfincer X2.. Can.