You won't find too many diners in the South, mostly because we're too busy building another Chick-Fil-A or a Waffle House. So, when you do stumble upon a diner, go. Hilton Head Diner is just that—a diner. The service is good, the food and drinks come out quickly, and it is all delicious. My travel counterpart got a basic eggs, hash browns, and ham breakfast, while I opted for something a little different: Banana Foster French Toast (which I would highly recommend).
The Diner has malts, shakes, and traditional ice cream sodas along with Irish coffee (in case it's that kind of morning).