I have always thought that the Cabins at Fort Wilderness would be a wonderful place for teens. The boys could grill, fish, bike, and rent a golf cart to drive around. If they enjoy nature and being outdoors, they would have lots of space and a beautiful and fun resort to explore.
Have to figure height into the equation if they are going to all want a separate bed, but with the queen in the bedroom, two of them could be there and one on the sleeper sofa, if no one fits in the bunk bed.