Both hotels are good, so I usually go with the cheapest hotel, but DW and I like Royal Pacific better.
Hotel layouts: It’s hard to get lost at RP. It has 3 Y-shaped towers from the entrance. PB has hallways that branch off other hallways at some locations which can start to feel a little maze-like.
Food: I like RP’s restaurants better. I feel that RP’s Island Dining is better than PB’s Trattoria. Also at RP, I really like Jake’s American Bar which is also a sit down restaurant. At PB, I like Sal’s which is counter service, and Mama Della’s is decent but expensive. Never done Bice, as it is very expensive and I believe it has a dress code.
Location: RP’s location is better with a shorter walk to Citywalk (and IOA) than PB. Also, arguably the best bar on property is SF’s Strong Water Tavern, which is a short walk from RP.
Rooms: PB has bigger rooms so it wins here.
Scenery: PB wins here too. I don’t think RP has anything that can compare to PB’s Harbor Piazza. Nothing can beat the view of that harbor when returning by boat, especially at night during Christmas with the Christmas tree lit up on the piazza. Also PB has singing entertainment from a balcony each night on the piazza (I believe this has returned since Covid).
All in all, you can’t go wrong with either resort. Both have qualities that are make them stand out. I’m sure you’ll enjoy the resort you stay at.