Definitely not the airport food. I heard some guys on the radio talking about Acme Oyster House, several locations along the gulf coast and one in Destin. It may be worth a visit. Let me know what your time around Atlanta looks like, if time permits, maybe we can meet up for a quick bite.
It's been over 15 years, but there used to be a BBQ restaurant just north of the Florida border, west of the highway as I recall. I thought it was good then, but who knows now.