Are you driving or relying on Disney transportation?
If you are driving, I would recommend eating either in the Boardwalk area or one of the monorail resorts.
At the Boardwalk, we really like Trattoria al Forno. It's a casual Italian restaurant. After dinner, you can watch the entertainment on the Boardwalk (magicians and jugglers, play carnival games, rent a surrey bike). It's really fun!
On the monorail, consider O'hana at Poly or 1900 Park Fare. You could have dinner, take a monorail ride and even see the MK fireworks from one of the monorail resorts.
If you are flying in and relying on Disney transportation, I would eat at Disney Springs or at AoA. It is much easier to take a bus to DS than to get from AoA to another resort. For the Disney Springs restaurants, I would actually make a reservation using opentable so you don't have to give a cc hold for the reservation. If you are flying in and encounter delays, you risk having to pay a no-show fee if you make an ADR through WDW. At DS, we really like the Boathouse!