The OP, I believe, is a cash guest through CRO, as their sig indicates OKW with free dining.
As the previous poster indicated, near Hospitality House (which means yo are closer to the main pool, resort store, check-in, etc.) is a separate booking category, at least on points. I'm really not sure how it works for CRO reservations. There is one main pool, and 3 quiet pools at OKW. All of them have a sandy childrens play area and hot tub. There are 5 bus stops throughout OKW, so really there aren't any "awful" locations. I assume this trip s you, your DH and toddler? If so, it probably won't make any difference as to how many bathroom entrances there are, but bldgs 29 and under (this includes the near HH category) have one entrance to the bathroom, through the master bedroom. Bldgs 30 and over have 2 entrances, through the bedroom and through the laundry room. Bldgs 30 and higher include the Turtle Pond and South Point areas.
The best water view rooms are in bldgs. 45, 46 and 55.
Remember that only 3 bldgs, 62, 63 & 64 have elevators, and these are often used for those with mobility issues. You can request a ground floor room, but the stairs have a gentle rise with a landing every 1/2 flight.
I'm sure you'll love OKW!