Personally, I would choose Music over Sports. It is quieter! We liked the food court and Music when we visited, as well as the look of the Pool.
In Music, the smoking rooms are located in buildings Calypso #1, which is the closest to Melody Hall, but is a preferred building, Jazz # 9, which is in the middle, and Rock Inn #3, next to the Piano Pool, at the far end.
In Sports, the smoking buildings are Surf's Up #1, next to Stadium Hall, but is too is preferred, Hoops Hotel #3, which is a good hike from Stadium Hall, and Home Run Hotel# 9, also a good hike from the Stadium hall, but near a pool.
Not all of the buildings have smoking rooms, in fact, it seems as though there are more smoking rooms available at AS than at the other resorts.