... the most expensive is PBH and it also has the largest rooms. HRH is the 2nd most expensive and has rooms a bit smaller than the PBH, as far as I know. RPR is least expensive and has smaller standard size rooms than either of the others... I've heard that it might be a tight squeeze to get 5 into a RPR room, so the last time we went we opted for HRH. It was a bit tight for 5, but do-able. I would think the best bet for 5 would be a HRH deluxe room. Not sure how much those cost these days, however...
Happy planning,
Sarah