Wow!! Clearly, I need to consider staying at the Polynesian on my next visit (which is in just a few short weeks by the way)! I've never stayed there, but I've spent a lot of time walking around the hotel and the grounds. But it sounds like it is the overwhelming winner on this thread (so far anyway)!
If I were to limit it just to the ones where I've stayed, I would rank them in this order:
1) Beach Club - It is a beautiful resort and it's proximity to Epcot (my favorite theme park in the world) can't be beat!
2) Wilderness Lodge - The decor is great and it is the best for all the hidden Mickey's.
3) All Star - Without a doubt, the best value on the entire property.
4) Grand Floridian - The most beautiful hotel on property. If only the rooms were a little larger, it would probably have my #1 or 2 spot.
5) Contemporary - Depending on where your room is, excellent potential for some great views of MK or Bay Lake.
6) Coronado Springs - The best pool on property (yeah, even better than Stormalong Bay...Not like I've pool-hopped or anything <wink wink>). Also, the location is reasonably close to all the action.
7) Caribbean Beach - This one's at the bottom of my list and I suspect it would still be even if I'd stayed everywhere on property. The walls are bit thin (when I stayed there I could hear the couple next door...<ahem>...on their honeymoon)! Plus it is just a little too spread out. I do enjoy walking around the resort during my visits though (just don't think I would stay there again).