For the most part any section you stay in will be fairly close to a bus stop. There are 5 total: Grandstand, Carousel, Paddock and Springs, and Congress Park...
Congress Park is our favorite area, it is the closest in terms of walking distance to DTD and the quiet pool has a great view of DTD.
The carriage house (which is the main lobby area of the resort) is closest to the springs as a PP pointed out. That is where the artists palette (quick service restaurant) and the turf club (table service restaurant) are located, as well as the main feature pool, the spa, arcade, common area's, boats to DTD, and most importantly the
gift shop 
lmao: ).
Remember the grounds are a little more spread out than most other resorts so a little walking may be required depending on where you end up staying. Also, you can always take a bus within the resort if it is more convenient (ie. catch a bus from the grandstand and get off at the springs).
SSR is a beautiful resort, hope you all have a great trip
