Currently, Animal Kingdom is being pushed heavily–which is nice with the opening of Pandora. It is really the only Deluxe resort being heavily pushed/promoted by Disney currently.
The Art of Animation and Pop Century resorts are right next door to each other and close by ESPN Wide World of Sports and have just been updated, so those, as Values, are likely to be pushed (especially for the cheerleading competition in February).
From the 3 Boardwalk hotels (Beach Club, Yacht Club and Boardwalk) are all convenient to walk to Epcot or short boat ride away to Hollywood Studios. Beach and Yacht Club share a beach area and a sand-bottomed pool that appeal to all ages.
The Magic Kingdom resorts (Contemporary, Grand Floridian and Polynesian) are generally full, due to the convenience of the monorail. Copper Creek Villas/Wilderness Lodge/ Fort Wilderness is also considered in the Magic Kingdom area, and they are short boat ride away. Rv spots fill up fast.