It might be expensive but if you can find a deal then I say at the CR.
We were lucky to get upgraded to a suite in the garden wing that had a king bed room, a sleeper sofa for 2, and then it had 2 more sofas that were bed size. It had 2 bathrooms, 2 entrances, a dining table and lots of space. A great view of the ELP and even some fireworks from the beach. It was so comfortable.
I think, especially for the younger kids, the single sofas would be perfect (in front of a HUGE t.v.), the sleeper sofa for the 2 older, and of course, the king bed for the parents and some peace and quiet!!!