I would suggest staying at AKV if having space and an additional bathroom is a priority. As far as purchasing, I think SSR has fairly good resale prices and low maintenance fees. There are so many variables to consider its really something you have to decide based on whats important to you. I happen to own a good portion of my points at both VB and HH. I use them mostly at WDW, however, when I do go to VB or HH its nice to have the 11 month owner priority.
The biggest thing when considering location, is does it matter to you? Because if staying at the Wilderness Lodge during Christmas every year is the most important thing, then you need to buy there. The same goes for staying at Boardwalk and Beach Club during the food and wine festival, if you want to do that every year you need to own there.
Good luck on your ownership, its been a good decision for us since 2001.