Here are my three favorites:
1. Annandale - Amazing amenities including with pool, lakes, walking trails and parks. Fantastic location with great schools and close to the highway. The houses have also done a fantastic job of retaining their value thus far.
2. Governor's Club - Definitely on my personal favorites list. "Elite" area with golf course, clubhouse, pool, etc. Just a gorgeous neighborhood with beautiful houses.
3. McGavok Farms - Includes a park, walking trails and a lake. It's also right beside the beautiful Granny White park, with fantastic athletic facilities, tennis courts, etc. It's in close proximity to downtown Brentwood with great schools, but not too far away from downtown Nashville.
Best of luck in your home search!