We didn't eat out a lot when I was growing up, and we certainly didn't eat at fast food places, so my first hamburger likely was at home. (I didn't keep a burger journal.) But we didn't eat them too often. Maybe that's why I'm such a hamburger addict now. Nothing like a good juicy burger (made with a 70:30 meat-to-fat ratio) and grilled over an open flame.
Toppings are important, too. I love what is called a dirty burger with a fried egg on top so the yolk breaks open and flavors the burger. Then there's the local favorite, the bean burger, with refried beans, Frito's and melted cheese. This past weekend, I came across a burger topped with foie gras that certainly sounded tempting, but I somehow passed on it.
My perfect burger will probably always be the next one to come.