Once Upon a Time... Detective Comics #500 (March, 1981)
Len Wein and Walter Simonson
2 pages, 12 panels and 39 words. That is all you need to tell the perfect Batman story. It has drama. It has suspense. It has action. It even has a dash of romance. I was 9 years old when I picked up this fantastic book. The story resonated which me on visceral level back then, and it still does today.