Where The Streets Have No Name - 14
With Or Without You - 8
The Fly - 13 (+)
Stay (Faraway, So Close) - 7
@ Vanquish: I vote for The Fly, cause it was the beginning of the new (best) U2. I'm a big fan of U2's 90s Dance Rock and The Fly is THE song of that period!

I agree with you that Streets is THE song, but I vote for my personal fav, and not Streets because it's supposed to be THE song. I just prefer The Fly.
