We are in the same boat...family of 5, 2 adults and 3 "Disney" adults, 12, 11 and 10. We are doing a split trip with US/IOA but staying at Disney property the whole time.....so since POR is out, 7 nights, we booked two rooms at POP, 4 day park hopper and upgraded the dining plan for a grand total of $4344.80. Kind of a bummer b/c POR would have been $3431.09. We were trying to stay below the $4k mark, so we got as close as possible with that choice.
We priced out Allstar Sports, The Cabins, BCR, AoA and CSR. Allstar Sports came out as the cheapest alternative at $4198.51, however, with the direct buses at POP, we decided to pay the extra $200 for that. Wilderness Cabins was next at $4241.13, but I didn't read good things on the transportation and being so far away from everything, especially around its own resort area. Pricing the deluxe resorts were getting us near the $5k mark, starting at $4751 for BCR - and we haven't added our US/IOA tickets yet - so we were not interested.
It just becomes a hard pill to swallow knowing how much POR is and not having to stay at a value when we all would have fit in one room. However, we are getting excited about all the space with two rooms, though! The kids will be thrilled with having their "own room." Room bathrooms, two frigs, more space....we're thinking positive!!
Good luck.