Congress Park - Rooms 1501 -1836 - it's nice and quiet. You are not near that main road that circles by the north of the property. It also has its own pool and hot tub (right opposite DTD) so you don't have to trail down to that Donald Duck pool. A really short walk along the path to Marketplace at DTD.
Downside - a bit of a walk to front desk (Carriage House) for the eateries (but use your car!) and also for the boat landing stage. They need to put another one in the Congress Park area.
Incidentally, people have moaned about the bus services to the parks from SS. We had no problems - buses seemed to arrive every five to ten minutes depending on where you wanted to go.
Now I'll turn that little mouse's dream into a nightmare Fantasmic !