The real "fountain classic"! I picked some of this up at Food Lion this morning (12-packs $2.75 each). I think this is my favorite. I do seem to tire from the specialty flavors, but regular Diet Dr. Pepper never gets old. It's not too sweet, and there's no aftertaste. It's as close to perfect as I've found in a diet soda.
Ingredients: caramel color, aspartame, phosphoric acid, natural flavors, artificial flavors, sodium benzoate
My rating: 9/10