Congrats on checking into the resort so soon!
Hmmm, best building.....From my experience with the two building I've stayed in, Building 8 was closer to all the things you mentioned above, but I think Building 5's rooms were in little bit better condition.
In Building 8, you're next to the quiet pool and the laundry rooms, and you're the football field length away from the food court and bus stops.
As far as preferred go, I wouldn't get the surf's up sections. It's always loud at the main pool and guests are coming and going constantly.
The football building (can't remember which number it is) seemed pretty nice; there were rooms on the backside that faced the playground that seemed kind of tucked away and serene.
Whatever you do, though, try not to score the Hoops Hotel (Buildings 2 and 3). I walked around them a few weeks ago, and they were so far away from everything and seemed sort of deserted. I didn't even feel like they were part of ASSp, but if you're looking for something really, really quiet, then it's perfect.
Have a great vacation!