The closest to the main pool and bar is Springs. However, Springs is the last of the 5 bus stops and it is often crowded or standing room only by the time it stops there. We did not enjoy staying in this section because we found it noisy. We were close to the bus stop and sitting on our balcony was too noisy for us to really enjoy it.
Paddock is the 3rd bus stop and there will be a feature pool there but it's not going to be open in time for your visit this year. Paddock has always been my favorite section because it's quiet but I'm sure that the new themed pool will change that.
Congress Park is the 4th bus stop and has the views of DTD. It's about a 7 minute walk from Congress Park or Paddock to the Springs Pool and main building.
Grandstand is the first bus stop and a 5 minute walk to the main pool. Many people with young children request this section due to the kiddie play area.
Carousel is the 2nd stop. This is the ony section I have not stayed in so I can't comment on it.
I can easily walk from any section to the main pool/bar/store, etc. The resort looks so spread out but they have great walking paths and I don't find a 10 minute walk to be so bad.