I love European hotel breakfast buffets because I can eat what I was hoping to be able to eat whilst in Europe

Plus, depending on my jetlag, sometimes I really do want pickled-stuffed-herring at 6am

These buffets are generally of a high quality and I can eat as much as I'm hungry which varies according to my jetlag.
Asian afternoon tea buffets or Sunday brunch buffets with a carving station, egg station and seafood station are also at the top of my list as the food is always fresh and there is a good selection of both sweet and savory dishes. Again, I like the high quality and the mix of sweet and savory because I'm usually jetlagged to some point. At these higher-end buffets, the staff keep on eye on the food and will remove something if people are sticking their fingers in and getting gross about it.
I find regular run-of-the-mill buffets gross due to the double dipping factor. Plus the lower quality of food and incorrect holding temperatures just beg for a severe case of food poisoning.
& while I'm on my rant, the grossest thing on a buffet table is the chocolate fountain. The very nature of the fountain has people sticking their sticky fingers into the chocolate. Ew!