Jas. Hacienda and Riu are both very nice places, and I would say they are equally remote. Hacienda is closer to PP by about 10 minutes, but you still have to come into PP (or further) if you want to see more than what the resort has to offer.

Take day trips on a guagua to PP/Sosua/Cabarete...that way you'll have the best of both worlds (all inclusive and beach communities with different food for you to eat!)

marc