We love Sheraton Vistana Resort.
Like a couple of PP's we bought where we want to stay and own one of our 3 Orlando timeshare weeks there - the last one we bought, and the one we use most. We really like the fact that the resort is mostly low rise buildings so doesn't have that jammed in feeling you get in the high-rise resorts. Amenities are great, you can spend a week and never leave the resort and not get bored; market, restaurants, 7 swimming pools, mini-putt, tennis. But if you do leave the resort, it is very central to absolutely everything - Disney, Universal, SeaWorld, I-Drive, Sand Lake Restaurant Row, Outlet Malls and other shopping. We love the location!
If I bought one more week, it would be at Hilton Grand Vacation Club, I-Drive.