I normally hate buffets, but the Wynn managed to impress me.
The line to get in here is always pretty ridiculous. We waited about an hour which is insane for me considering I didn't want to go to a buffet. Once you are inside the array of food options can be really overwhelming. They do an excellent job controlling the flow of traffic into the buffet which means that there is never a line for the station you want to go to next.
The food is of excellent quality by any standard, but insanely fresh and delicious considering it's a buffet. You can find food from every cuisine you can think of. I was especially impressed by the dessert selection. The creme brulee was incredible and definitely the perfect way to end the meal.
The service here, like everywhere else inside the Wynn, is incredible. The staff will absolutely make sure that you have everything/anything you want so that you thoroughly enjoy your meal.
If you are looking for the best buffet in Vegas, you just found it.