It's not really complicated. First, if you are not in the Hospitally House area, no big deal. There are no certain areas that are better than others for kids. You have a car, so you can easily drive to the pool or DH can walk to the gym as a warm up.
In 14 years we have never had a bad room. We had one room with a view of the jungle (first floor) but the building location was great. Have had some great views, but needed to walk quite a bit to the HH (pool). I can say I have never been totally disappointed. We love the Turtle Pond area for a quick dip in the pool. We have stayed in 31 and 32 and loved the views and the walk to the pools are not bad.
So unless you want a view (ask for the 3rd floor) or you can't do stairs, (ask for first floor), other than that, you can't go wrong.