Thanks so much for the reply! I was hoping to find a suite for a night that would accomodate that many in one room. We are trying to work a way for friends to join us, but I don't think they could do a room by themselves financially.
You will need to book 2 guaranteed connecting rooms, at any of the 3 resorts. We usually stay at RPR. Even the suites, which are very costly, don't sleep 8 (at least the ones I've looked into).
You can get a villa suite with the attached extra bedroom at PBH. It has one bedroom with two queen beds, the big pullout in the living room and then the second bedroom with 1 king bed. Very, very expensive though. You are much better off to get 2 connecting rooms at RPR.