Smashburger > Five Guys > Red Robin > Shake Shack
That's my chain top four, Shake Shack is good, but there are better. The servings are a bit small for the price, and the menu is sparse on options. Not a big fan of their fry style, and their shakes are subpar at best. Great burger though, made with high quality ingredients.
never tried Umami Burger or Culver's, both I hear are very good