Mastering the Hamburger. That is my quest. What does it take to make the best burger? I will find out. I rate burgers from 1 (inedible) to 5 (sublime) spatulas. Gourmet or grease bomb? Don't care. It just has to taste good. I will also rate fries, onion rings and milk shakes where available. Since I live in the San Francisco Bay Area, I list the Top Bay Area burgers first.