The following are the results of a survey of Comic Book Resources readers for the most iconic covers in DC Comics history, in ascending order.
10 Green Lantern #85 (art by Neal Adams)
9 Batman #404 (art by David Mazzucchelli)
8 Watchmen #1 (art by Dave Gibbons)
7 Justice League #1 (art by Kevin Maguire and Terry Austin)
6 Batman: The Dark Knight Returns (art by Frank Miller)
5 Batman: The Killing Joke (art by Brian Bolland)
4 Detective Comics #27 (art by Bob Kane)
3 Flash #123 (art by Carmine Infantino and Murphy Anderson)
2 Crisis on Infinite Earths #7 (art by George Perez)
1 Action Comics #1 (art by Joe Shuster)