Thought I'd reopen this thread since I recently moved to Las Vegas and have experienced some buffets, and I have some questions about others.
Mandalay Bay -- I went to their buffet for breakfast since I was staying there while house-hunting. I am not a huge breakfast person, but I thought theirs was great! They had good omelets, French toast, crepes, and bagels and lox. Plus my glass of grapefruit juice was never empty.
Excalibur -- Went there for lunch. Pretty much you get what you pay for. It is definitely a cheaper buffet, but it is probably more economical going to the McDonalds in the food court than to this buffet. The Chinese food was okay, and the desserts weren't bad, but it wasn't anything to write home about.
Green Valley Ranch -- Feast -- I think they do a great job, and if you go during the week, it is a good value as well. Technically this is in the Green Valley area of Henderson. It is a very nice hotel; this is the place where they film
American Casino. Anyway, the Asian selection is great. The Mongolian Barbecue is fantastic, and I like the Chinese food as well. I really liked the Mexican food as well, and the Italian isn't too bad. I had some very good prime rib and salmon there. I don't eat shellfish, but people were gobbling it down. The desserts are very good! There always seems to be a very long line (but I'm usually comped so I bypass it

). Also, they don't change the menu ever, it seems.
Anybody know anything about the one at the Palms? It is a lot cheaper (~$12) than I thought it would be. Also, for the seafood buffet at the Rio, is there sushi? Is it any good?