I can't say I have a favorite burger but my ideal burger is a smashburger in which the edges are thin enough to become a crispy, a slice of cheese (a good muenster can succeed in this, but I don't oppose any other cheeses) that melts on top of the meat as to nicely melt into it but not too much, the buns toasted on the same griddle until the bottoms are brown and the butter has been absorbed into the bread, a slice of lettuce that is shaped roughly in proportion of the bun and patty, a slice of tomato from the center of the fruit cut to about a quarter of an inch, onions that are thin and cooked on the same griddle that can be placed in a nice hill, with a thousand island like burger sauce that is the right amount of ketchup, mayo, paprika, pickled relish, mustard, and apple cider vinegar. Sauce has to be spread on the bun not the toppings nor patty then they are pressed nicely together.