If there's one study out there that is answering the real question, it's this one. CNBC has found which are America's favorite fast food chains.

ThinkStock
  1. Favorite burger chain: In-N-Out Burger. Runners-up are Culver's, Five Guys, and Smashburger.
  2. Favorite Mexican chain: Chipotle. Runners-up are Moe's Southwest Grill and El Pollo Loco.
  3. Favorite pizza chain: Marco's Pizza. Runner-up was Papa Murphy's.
  4. Favorite chicken chain: Chick-fil-A. Runners-up are Raising Cane's and El Pollo Loco.
  5. Favorite sandwich chain: Firehouse Subs. Runners-up are Panera Bread, McAlister's Deli, and Jersey Mike's.

Read more at CNBC and find out which are the least favorite chains.