We just had the breakfast buffet last week. It is excellent. There are the usual suspects - bacon, eggs, french toast, eggs benedict, sausage, oatmeal, hash browns, smoked salmon, make your own omelette bar. I don't remember too much being unusual, it is just the quality of everything is well above the standard Disney breakfast fare.
It is a character breakfast with Chip and Dale and friends. It is pretty low key though, not intrusive.