Buildings 50-53 and 60-65 (there's no building 61) are around the main lake and buildings 54-56 surround the little lake extension at the east-most part of the lake.
52 and 53 are on either side of the clubhouse/marketplace/food court/pavilion bar/clubhouse pool area.
65 is just outside of the gate to Island Pool area.
62 and 63 are on either side of the activities area/fitness center.
60 and 62 are just a few steps away from the small Bayside Pool area.
We've stayed in Building 62 two or three times and enjoyed the view across the lake. We liked that we had an almost private pool area close at hand but weren't very far from either of the other pool areas. It was a nice location.
However, for our last stay I chose Building 65 for a two-week stay because of its convenience to the Island Pool where we tended to find ourselves at both the beginning and end of the day, using the pool and/or the hot tub.
But I really think that any of those buildings around the lake would be just fine for us. Because of the bridge across the lake between the two main pool areas, nothing is very far from any other point around the lake.