You're at the diner, the burgers are on the way, and now comes the real decision: what milkshake are you ordering? Classic Chocolate never lets you down, Strawberry brings that sweet nostalgia, and Malted Vanilla keeps the old-school crowd loyal. But can any of them survive a matchup with Oreo Cookies & Cream or Peanut Butter? From simple classics to thick, loaded dessert shakes, every flavor has its defenders. Pick your favorites, settle the sweet-versus-rich arguments, and vote head-to-head to crown the best milkshake flavor of all time.