BuzzFeed decided to have people try famous fast food breakfast sandwiches to see which they preferred -- without knowing where each one was from. The contenders? McDonald's, Dunkin' Donuts, Burger King, Starbucks, Jack in the Box and Carl's Jr. Before taste testing commenced, the participants thought they knew which fast food sandwich they liked best -- but some of them were in for a surprise. Not to mention that their frank commentary was rather priceless. "That's the worst one yet," one taste-tester said frankly, pointing to one of the contenders. Oh, and you want to know which fast food chain came out on top in the end? The champ was Jack in the Box! Do you have a favorite fast food breakfast sandie?