I didn't vote because my choices weren't among the options. For a 10-year anniversary, I'd choose one of these:
Grand Floridian Royal Palm Club -- based on our recent experience, the ultimate in pampering and romance
Boardwalk Inn -- honeymoon suite -- a two level room with separate downstairs sitting area, upstairs king bed, jacuzzi tub, tiny kitchenette, your own private lattice-work entrance and a cute mailbox all in a beautiful rose garden area, plus comes with Club Level amenities
Beach Club Villas or Boardwalk Villas -- a one bedroom villa at either would be lovely -- we like the one bedrooms because you're guaranteed a king bed, and you have a jacuzzi tub, washer/dryer (handy if you like to work out), full kitchen (we rarely cook but it's very convenient for room service and take-out meals) a separate living area and two TV's. For two adults, I recommend the Epcot Resort area as there are more dining options within walking distance there than anywhere else.