Photo: BuzzFeed Facebook Image 1of/13 CaptionClose Image 1 of 13 It's official. Whataburger has been dubbed the winner of taste over In-N-Out and Shake Shack, according to BuzzFeed.  It's official. Whataburger has been dubbed the winner of taste over In-N-Out and Shake Shack, according to BuzzFeed.  Photo: BuzzFeed Facebook Image 2 of 13 Image 3 of...