Catholic or Protestant? It all boils down to what side of the river you're on. On the one hand the subdued colours of Uzes, or the flamboyancy of Arles. Are you more Carven or Christian Lacroix? Here is a few of the places you should visit. They're all slightly off the beaten track.
Tarascon, Chateau St Privat, Grasse, Roussillon, Lagrasse, Avignon