RE: best burger in south louisiana
AHHH you are so right!
I do live in South LA, in Breaux Bridge, 30 minutes from JLB winter home of New Iberia. Also frequent his famous Victors cafeteria there once a month or more.
Actually named my dog Robicheaux after my favorite author, but we call him Robby for short.
Let me know if you are ever in the area, will taking you on a food tour.