We have stayed at both, and I side with Macraven, go with RP. It is ten times more breathtaking then HRH, the lobby will blow you away, and you can still use the pool if you want the slide at HRH. After a while, the music will drive you nuts at HRH, there is no escaping it. The only down side to RP is that it has a longer walk if you don't take the water taxi.