We've stayed at the PBH and RPR and I prefer the RPR because my wife tells me to.
The RPR has three of our favorite eating establishments: Jake's American Bar, Island's Dining Room (breakfast buffet), and Emeril's Tchoup Chop. At PBH, although we really like Sal's, we weren't impressed with the breakfast buffet at Trattoria's.
The RPR also has a simplified floor plan which is easy to navigate. The PBH seems like it has a lot of hallways going in various directions. It took a while to determine the correct hallway to/from our room.
Of course, the PBH is a beautiful hotel. When we checked in, we were upgraded to a deluxe room with a step out balcony over one of the pools. The music on the Harbor Piazza is a very nice touch. We stayed there in December and was impressed with the large christmas tree decorating the Harbor Piazza. I deffinitely would like to stay at the PBH again, but for now, most of our visits will be at the RPR.
However, that can change this October with our first stay at the HRH.