We just returned from our trip this past Thursday. We did dine at both. We have been to Le Cellier many times, and have always enjoyed it. This was the first time we went to Yachtsman.
We did enjoy Yachtsman, I ordered the Cowboy Steak, which was really really good. There were two in our party who ordered the filets, and they said it was just so so, especially for the price. The other person we were dining with ordered the porterhouse, and she loved it, although she couldn't finish it...it was huge!
Le Cellier though, imo was better. I ordered the mushroom filet (like I usually do) and it was out of this world, as usual. I also love the cheese soup!! The price is much better also.