Just returned from Vegas. I have learned a lot from this site over the years, so I feel obliged to return the favor.
First nite, in a rush, we stumbled into a sushi restaurant right outside the Michael Jackson show in Mandalay Bay. We thought the food was simple, fresh and delicious. Highly recommend the place (I forgot the name). Second nite, we chose the food tasting menu at B and B (Mario Batali and the son of Lidia Bastianich ? spelling). I also had the wine tasting. First the positive: the service was superb from everyone, especially our wonderful waiter Ian. The negative: the food was just OK. We thoroughly enjoyed the evening as a whole because of the service, but the food was average at best. I did not have one dish that I would re-order. I am sorry to be so blunt. But, as I said above the evening overall was enjoyable. Next we decided to go to the Wynn Buffet (Friday nite). The next nite, we went to Bellagio Buffet (Saturday). We thought it would be good to compare a weekend vs. weekend nite. The conclusion is that they are not very disparate. For the price, about 45$ each, both are a good deal. We left a tip at our table, but we noticed that not everyone did. So, for 45$ don't expect to be "wowed." There are some very good dishes, but nothing to write home about. The Wynn's lamb chops were better than Bellagio's; both were very good. The Wynn had good dumplings, but not as good as you would get in Chinatown. The famed Sea Bass at Bellagio was excellent, but how much of that can one eat. Of note is that the Crab legs are worthless at both places. Small and clearly previously frozen, they are terrible. It is way too much work for too little meat. Also, as you bite into the meat, water is extruded into your mouth as if you are biting down on a wet sponge. The desserts were great at both places. Wynn has a Crepe maker and excellent Gelato. Bellagio had excellent coconut macaroons. Overall, if I had to choose, I would say Wynn was slightly better. Again, don't expect this to be a life changing experience. You will however get your money's worth. If you are interested in either of the two buffets, I would base my decision on which hotel you are closer to at the time you want to eat.
We also had breakfast on Sat Am at Bouchon. It was our most enjoyable meal of the trip. My wife ordered the french toast with sausage, and it was more than she could eat. Luckily, I only ordered a bloody mary (absolutely delicious), as I usually don't eat breakfast. I was able to finish my wife's meal. I felt a little guilty about that, but the waitress didn't seem mind and was very nice. I think it is a great place, and we will go back again without hesitation.
Other comments: thanks to this board, we were able to find the hidden pizza place near the pool table at the Cosmopolitan. We didn't try the pizza, but it looked amazing. Word from other guests is that Lakeside at Wynn is phenomenal.