we got back 2 weeks ago and ate at both and heres a little point of view from our eating at both. We did dinner at concourse..honestly, it was the best meal we ate there and we were actually upset with le cellier when we went for lunch but it could also be that the service was a bit slow and we were pressed to get back to leave for the airport but our lunch compared to the concourse dinner was just eh. 2 yrs ago we ate dinner at le cellier and it was the best meal of that trip but this trip concourse def. beat it.
others TS we ate at were: alfredos, coral reef, LTT, tonys, sci-fi, and we ate breakfast at wcc
..anyways good luck with your decision!!