Marseille- Best Bouillabaisse???
I am from Marseille... :) The Rhul or Chez Fonfon.. expensive but that's the real deal.. Avoid anything around Le Vieux Port. Each time I go home, I make a point to go to the Rhul though...L'Epuisette is also very good.
If you have a car and you want authentic provencal cooking , go to La Ferme, in Aubagne. You WILL be amazed...No boullabaisse though.