Le Cottage is still my overall favorite. Stephane and Tania have hit their stride with the food and service.
Piazza Pascal is consistently good with great hosts.
L'Estaminet has always been a favorite for me, but my last tow meals there have been underwhelming. Not sure it is a coincidence since they were after Carole left.
I recently tried L'Ardoise and it was a pleasant surprise. It is located in the old Le Quinze, which was formerly Hibiscus. The entire menu is on a chalk board, so it changes regularly. Prices were quite reasonable and the food was excellent.
I have also heard good things about L'Effet Mer but have yet to make it. We actually ended up at L'Ardoise because L'Effet Mer was full (seems to support L'Effet Mer's reputation).