We've loved every resort we've stayed at for different reasons.
BWV (our home resort) - always a favorite for sentimental reasons, proximity to EPCOT and Disney Studios is fantastic, kids loved the pool and slide, especially when they were younger, Boardwalk entertainment is fun, and we love getting ice cream sandwiches at Ample Hills Creamery. Now that our boys are 19 & 16, they want to return to BWV on our next trip as EPCOT & DS are the parks they are most interested in visiting.
BLT - great with younger kids who want to spend a lot of time at MK. Easy walk to park. Dining options with Chef Mickey's and California Grill on property are great. Love being on the monorail loop. Park views are hard to beat.
GFV - beautiful rooms and resort. Monorail loop and dining options are a plus. Proximity to MK is fantastic and will only improve when they complete to walkway
AKV - Animals, unique dining, amazing theming! We also love the activities and learning opportunities at both Jambo House and Kidani Village. The cast members are amazing! Only downside for us at AKV is busing being the only transportation option to resorts. We usually add a few nights on at AKV at the end of our trips for a relaxing close to the vacation when we've already done all the parks.
VWL - hard to fairly review our one stay at this resort as it rained constantly all three days, making the stay less than ideal. However, we loved the theming and lodge.
One of our new favorite places to stay are the Treehouses at Saratoga Springs! We stayed in a treehouse for a week last year, and for the point value, we couldn't get a more spacious villa. We loved the layout of the treehouse. It comfortably fit my DH, two DSs(ages 17 & 15), my mother, and me. As our kids are older, they enjoyed the proximity to Disney Springs. The quiet pool wasn't exciting, but we often had it to ourselves, so it was very relaxing. The vacation was planned to be fairly park-free, so the transportation to parks being limited to buses was not an issue. We also opted for using Lyft and Uber to get to the parks and other resorts for dining.