Out of the three I prefer the HRH, next would be the RPR and then the Portifino. We have had deluxe and standard rooms at the HRH. The deluxe is huge, and comfortably sleep 6, the problem would be bathroom sharing. The portifino had the best bathroom by far, and the most comfy beds. The rooms we had at the RPR were standard sized, very pretty. When we go back we will probably stay at the HRH again unless the price is much better at the RPR. I like the "Velvet" bar at the HRH and Jakes bar at the RPR is nice too.
I like walking to the parks and the Portifino was pretty far.