Everything's bigger in Vegas. But not necessarily better.
While I loved the quantity of selection (redundant?) at the Wynn buffet (5 kinds of ceviche? Hell, yeah!) the quality was another thing.
Aforementioned ceviche was great flavor-wise but did not have much actual seafood (I know, I know, they have to have filler but only getting two tiny pieces of tuna in 2 scoops of ceviche is just not right). The salmon and sea bass were quite dry and that strange artichoke dish was just bizarre. All of the pasta dishes were bland.
The good: chicken noodle soup made with real chicken stock, tender sliced beef with to-die for jus, amazing mashed potatoes (maybe I'm just easily impressed by butter), green beans, guacamole and the white chocolate crunchy cake. We got one of every dessert and that was by far the best. Runner up would be the orange tapioca. Sad, sad selection of puny slices of only 3 kinds of fruit, though.
If you want to give the buffet a try (and you do because everyone says you should), I'd definitely advise going for lunch. Comparable experience to dinner but less pricey so you don't feel completely ripped off.