In what I think is the order from cheapest to most expensive for a family of 5:
- a Trundle or Murphy Bed room at Port Orleans Riverside
- a Family Suite at All Star Music
- two (hopefully) connecting rooms at a Value
- a Cabin at Fort Wilderness
- a Family Suite at Art of Animation
- a room in the Garden Wing at the Contemporary
- a room in most of the Deluxes (except Wilderness Lodge and Animal Kingdom Lodge-- their standard rooms don't sleep 5)
The only of those options that has a full kitchen is the Cabin. Good luck!
We're huge fans of the Deluxes! The Poly, Contemporary and Beach/Yacht Clubs and the Boardwalk all offer incredible proximity to at least one park in addition to sleeping 5 in a standard room. (And Stormalong Bay, the pool area shared by the Beach and Yacht Clubs, is simply amazing!!!)
Also, if by some chance one of the parents is a teacher, nurse, or government employee, check out the Deluxe Alcove rooms at the Dolphin. They offer a nice discount to members of those professions. Last year, before we lucked into the PIN that made the Beach Club possible, I had a Deluxe Alcove booked. The price was something in the mid $200s I think.