I had to vote for the PBH but mainly because they offer the best suite upgrade for our family of 5. We do absolutely love the hotel and the luxury, but occasionally wish they had the larger suites at RPR as the tropical theme is my favorite. The Poly used to be my favorite hotel when we were Disney Fanatics and I think the RPR is leaps and bounds better than the Poly.
Love the HRH pool and always have to have a cabana day there. And love that we can sleep at PBH and it is a very, very short walk to the HRH. It is easy to run back to the room at PBH if we need something. And the kids love the energy of the pool and we love that the Beach Club will serve food and drinks until the pool closes. That is the only thing we dislike about the pool at PBH - it is not one you can hang around until closing if you want refreshments.