Source: https://www.thedailymeal.com/eat/biggest-food-debates
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Regional food debates aren't just limited to what to call something or how to pronounce it. It's also about cheeseburgers. While many locals are loyal to their regional chains, the two biggest regional titans are In-N-Out and Shake Shack. While both have expanded, In-N-Out spread from the West Coast over to Texas, and Shake Shack began on the East Coast. Both spots offer budget-friendly fast food-style burgers with special sauces, fries and milkshakes, and both have cult followings. Why can't these burger chains get along? And more importantly, why can't In-N-Out go national?
In-N-Out or Shake Shack?