In 2015 my wife and I did a Southeast roadtrip; flying into New Orleans and back out of Atlanta... so I can give you my thoughts on Louisiana but not much else from that trip.
We spent a few nights in the Garden District, not much time in The Quarter. Lots of good food all over New Orleans... you don't have to do Bourbon Street to have a great time.
We spent a full two days in "Cajunland"; using a small B&B in Breaux Bridge built around individual cabins on the shore of a man-made lake as our home base.
Did our best to soak up the local culture, hitting St. Martinville, Lafayette, and Avery Island (Tabasco!). Hooked up a cajun food tour there where they hauled us around in a bus to some hole-in-the-wall but authentic food stops where we had little bites of some great food. Tickets hard to come by. Hit Rosedown Plantation for a tour on the way from New Orleans (see photo).
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