I have stayed at both and loved both.
As far as pros for POFQ: small, quiet, New Orleans charm, beautifully landscaped, pool with sea serpent slide, walking distance to Riverside with another pool and sit-down restaurant, and slightly larger rooms with fridges and ceiling fans. Cons: small gift shop and small food court.
POP pros: fun atmosphere, great food court with much larger selection, large gift shop. Cons: lots of rooms (meaning the potential for lots of people), slightly smaller rooms with no fridge.
Having said that, I originally booked POFQ for our June trip, but the kids really wanted to go stay at Pop again. So, we decided to book Pop instead. Everyone is happy with the choice for various reasons: DH because it saves money, the kids because they love the pools and the atmosphere, and me because of the food court selections.