I tried In-N-Out and Whataburger side by side - and it's clear who makes a better meal
In-N-Outs are scattered throughout the Southwest, while Whataburger locations line the South from New Mexico to Florida. They meet in the middle, in Dallas, Texas, where I ate both side by side in a taste test.
While Texans swear by Whataburger's more Southern menu items - Texas toast, patty melts, biscuits - Californians rave about In-N-Out's fresh ingredients and "animal-style" burgers. I ordered a burger, large fries, and a chocolate milkshake.