Hi Michael:
I really enjoy the Animal Kingdom Villas. I find watching the animals on the savannas to be extremely relaxing. The good news or bad news regarding walkability is that Animal Kingdom Lodge Jambo House and Kidani Village are laid out like open necklaces (actually, "Kidani" is the Swahili word for "necklace"), and rooms are laid out across the "necklace." The further down either side of the "necklace" your room is located, the further the walk to the lobby, pool and bus areas. If you want a Room close to the lobby, contact the Resort several days before check-in. I would note that walking restrictions make a room close to the lobby important. Room-requests are not guaranteed, but if Disney is able to honor your request, they will make every effort to do so. I would even make the request again when you check in. It may help if you are flexible with your check in time and can wait until the right room opens up.
I would also think more about
Bay Lake Tower at the Contemporary Resort. Unlike certain other Disney Vacation Club Resorts (such as Saratoga Springs), Bay Lake Tower is contained in a single building with limited walking and plenty of elevators. In fact, it's right on the monorail, which will get you to the Magic Kingdom and Epcot very easily. Another suggestion to look at is the
Yacht Club. But my money is on Bay Lake Tower.
Enjoy your vacation.