I'm one of the few that thinks the standard cover of BTW is decent. I mean, it reminds me of a glam rock/metal album cover, that you are viewing while on acid. Many heavy metal bands have had weird variations of motorcycles on their covers.
ANYWAY
ARTPOP's cover has the best change of becoming iconic.
I mean for ****s sake, the main picture on the cover is a sculpture designed by Jeff Koons.

Pop Culture visualized in one image.