We stayed recently at POFQ with my son and, daughterinlaw and granddaughters age 4 and 6 and they lived the pool. We did not utilize the resort as much as we should have-- all our time was spent in the parks. You need to ask yourself how much time will I spend at the resort if it is just a place to sleep I'd go with POP and use the $7O0 on other things.
We don't spend every day at the parks. We usually plan to have 2 days off to go to DS, shopping, pool etc...