Most of the time I'd rather eat leftover dinner food than breakfast food, but of the breakfast food options...
#1 eggs benny - best I ever had was at
Snooze in Denver. Followed closely by the Park Hyatt Vendome
#2 French Toast - best I ever had was the Cinnamon Challah French toast at the
Breakfast Club in Scottsdale
#3 Full Irish - definitely with mushrooms, and minus the black pudding.
#4 Corned beef hash and eggs.