Lourmarin or St Remy or ROUSSILLON

I have been to all these locations and tend to prefer staying in St. Remy, but any would be fine with me. I just love the drive into St. Remy with the trees lining the road and the size of the town is perfect for me. Also, a great market and lots of good shopping and restaurants.
But, any of these locations should be visited regardless of where you stay.

I prefer Lourmarin but it is farther out from the main areas of Provence and to the main highway. Rousillon was a bit too touristy for us. Plus, you had to pay for parking everywhere. Parking is mostly free in Lourmarin especially by the large church. It is very quiet and scenic in Lourmarin. It's much smaller but has several nice restaurants and shops inside the village.

St. Remey for sure ...with all the markets, stores and great restaurants

I've been to all, and you will NOT be dissatisfied with any of them. Contrary to an earlier post, parking is free in Roussillon if you're staying there (we stayed in Reves d'ocre). Can't remember the places elsewhere. Roussillon is smaller, but is charming, and makes a great base. St. Remy is tough to beat, though. Lourmarin is the lowest key, though. I think Peter Mayle lives there these days...

Firstly, let me my bias. We are living in a little hamlet in walking distance to Lourmarin (see http://www.puyvert.com), which we chose after looking for five years at various places in Provence, including St. Remy. We really like St. Remy, but it is just too touristy for us and does not have the peace and tranquillity we were seeking. It is also in the direct line of fire of the mistral wind coming down the Rhone valley - something to be experienced (once only if possible) and the mistral can blow for one day or a week at almost any time in the year. Roussillon is picturesque with its famous ocre mines, but does not have the vitality that we were seeking. It is also that bit further (and one mountain pass) away from Aix-en-Provence which is a fabulous city. We found that Lourmarin was almost ideal for us. It is alive, even in winter, with concerts, art galleries and the lazy life of having a coffee or pastis at okay of the street cafes in the village (the road through the village is closed to traffic in summer). It also has a quite extraordinary market on Friday mornings, with everything you can imagine, from local grown produce to works of art and historical books! Fortunately, there are no parking facilities for buses so it is not on the tour route which tends to spoil other towns and villages. Lourmarin is lives up to its reputation as a laid-back but intellectually stimulating environment, that is much more open to differences than other villages in Provence. Wherever you go, you will have a great time with much improved local wines and a high quality of meals from fresh local produce. Enjoy it!! Lourmarin we