I don't have a particular favorite. The fast food industry is really not good for your health. Too much salt in the burgers, deep frying; a/k/a grease in fast food chichen chains like KFC, or MSG in chinese places, just don't meet my healthy needs. It is usually a last minute stop, during a trip or something, and only if I am really really hungry, would I find it necessary to make a visit to such places. Then it is the smallest or cheepest item on the menu, if I dare to choose!