For oysters, hand's down it's Gene's Oyster Bar in Panama City. A hole in the wall opened 60-or-so years ago. No atmosphere to speak of, but everyone on staff is efficient and friendly. For the longest time all they offered were raw oysters, but now they have a larger menu, and everything I've tried has been super fresh and just awesome. For the kiddies you can take the beach route back and hit Pier Park.