Which is better, buffet brunch or buffet dinner in a five-star hotel?

Well, a five-star hotel, and then a buffet brunch is definitely better, because buffet dinner, how can you sleep if you eat too much, right? So breakfast, although simple, is milk, and then those messy. But it's cheap, but we can have a good lunch. If I eat a buffet in the evening, I find that I really can't sleep if I eat too much, which is not good for my health. I'd better choose the front one.