Depending of where I am in the world...
In the US, either Eggs Benedict, or biscuicts and gravy, with eggs over-easy. A mimosa or Bloody Mary is always nice.
In Northern Europe, I'll take the cold cuts and cheese and nice fresh bread, with tea.
In Italy, where I grew up, just a simple cornetto or ciambella (basically, croissants and donuts) with a caffe-latte or cappuccino.
I also enjoy the occasional curry for breakfast, but I have to be *reall* hungry for that, and in the right place.