Fast-food fans can easily relate to the Whopper vs. Big Mac debate because both of these items are their respective chain's signature items. The Whopper is, of course, Burger King's signature sandwich - or as the chain calls it, "America's favorite burger" - while the Big Mac is McDonald's signature item. Keep in mind that both are marketed as "better burgers" in the sense that these aren't your regular fast-food burgers with dry beef patties, limp veggies, and bland cheese served on soggy buns. These are instead characterized by flavorful bites and a filling quality that leaves no doubt whatsoever that you've just enjoyed great burgers.