We have not stayed at many (yet), but have visited most of them just to try to get a feel. I always try to book at the 11 month window so we can be for the most part assured we will get the time and room we want at our home resort (SSR).
Now - after saying that, our goal is to stay at all the resorts at some point. So - I always call at the 7 month (after having booked) to see what is available for the time we are going down. Last October we changed our place to the Boardwalk to try it, and loved it. We stayed at the Wilderness Lodge once, and that resort got us going on joining
DVC.
My views :
1. SSR - A very tranquil resort, beautifully landscaped. I love the resort, I enjoy jogging around in the morning. Having DTD so close is great for extra food/dining options. On-site, I like all the pools, being so close to the LBV Golf Course, and just the feel
2. VWL - Another tranquil place, love the theming.
3. BWV / BCV - You feel in the center of the action. Great because you can walk to both Epcot and MGM (not a bad walk). You can watch the fireworks at EPCOT from the resort or take the short walk. It is nice to not have to hop a bus back to a resort once the show is over. Tons of food options with Epcot and the two resorts. Great pool at BCV -
4. OKW - I have not stayed, but walked around the resort, and played golf through it

I would have no problem staying there either.
5. AKV - Have not stayed or seen them yet.