What's the best burger joint?

McDonald's, Burger King, Wendy's, Shake Shoppe, White Castle, or Big Boy's? Honestly I've never been to White Castle or Big Boy's, but I know about them from seeing them before and from seeing them in movies. Harold and Kumar Go to White Castle and Austin Powers: International Man of Mtystery. But I will say I think Burger King makes the best tasting burgers. That's just my opinion. What's you all's opinion?