In buildings numbered 30 and under, the only entrance to the bathroom is through the master bedroom. If that is not a problem, then it doesn't matter what number building you're in. However, if you're sharing the unit with someone that you might not want schlepping through your bedroom (think middle of the night potty runs!), then request one of the higher numbered buildings. They have an entrance from the master BR & through the laundry room.
That being said, I like the Southpoint area the best. Buildings 55 & 56 are close to a bus stop and also close to a quiet pool, with nice views and close to the walkway to SSR & DTD. Any bus that goes through OKW stops at the main area on its way out, so if you needed to get to the main area and didn't want to walk, you could just hop on any bus.