I'm not voting, since I haven't stayed in all of the DVCs yet (though we've at least visited all of the resorts that are DVC or have a piece of the resort dedicated to DVC villas). Based on where we have stayed...
Boardwalk Villas. Being walking/boating distance to two parks was an incredible perk, as was being close to 4 other resorts and the amenities they had available. Loved the pool, the theme...the one major negative was a lack of a big food court. Bakery's awesome, having access to the pizza window is nice, but both lines can get very busy, between people staying on site and people visiting.
Wilderness Lodge - went to MK many times when we stayed here, the boat ride was so nice. Bused over to FW a few times at night for movies and dinner. Liked the theme of the Lodge, the layout, the extra pool (while still having access to the main one). Both restaurants got our business. I'd be torn twixt these two.
Saratoga Springs - iroinically, my least favorite, as it is our home resort. Nothing wrong with it at all, I still like it quite a bit, and my wife prefers it over the others by far. I just prefer being a little closer to the action, I guess. But the rooms are lovely, the extra quiet pools are awesome, it's nice to be so close to DTD (though it WAS nicer when Adventurer's Club was still around). Big complaint, comparable to Boardwalk, is the counter service dining option. At least here there IS a counter option, but it's usually crowded, confusing, and not all that tasty. I always recommend staying at the Congress Park section and walking over to the Marketplace for meals if you're not eating in the park that day.