We just did a trip with a 3 year old and a 1 1/2 year old. Stayed in 3 different villas. Our 3 year old LOVED BCV and Storm Along. It was also nice to walk to Epcot at night with a stroller for some adult fun if the kids were sleeping.
Again, depends on your room situation. AKV was fun for the 3 year old but the busses were an absolute pain with the stroller. With BCV we just walked through epcot to the monorail or walked to MGM.
BLT would be nice for the walk to MK, but we just did not like the theming.
Personally, I would do BCV or VGF ( I don't know your points/room situation). If you will spend a lot of time at the hotel...make sure it is a fun place. We love BWV...our 3 year old, not so much.