This list can be two things: commercial, or personal. By commercial, I mean, what music sells a zillion copies & makes 100,000 fists wave in the air. By personal, I mean what music is most personally compelling, evocative, spellbinding to YOU yourself. I'll go by personal.
The purity that was captured in the recording studio during I Still Haven't Found What I'm Looking For aids the recording SO much. I can't see how U2 will ever get so uplifting again without resorting to some kind of sentimentality...
P.S. As this list is COMPLETELY personal, I'll throw out my Top 25 (knowing full well that most people here will think that I'm on crack, but oh well):
1. I Still Haven’t Found What I’m Looking For
2. The Fly
3. Lemon (full 6:56 Zooropa LP version)
4. Red Hill Mining Town
5. All I Want Is You (full 6:54 Rattle & Hum LP version)
6. Zoo Station (live Zoo TV 1992 indoor arena tour with opening Bono intro)
7. The Playboy Mansion (remember, this was Larry’s favorite song from the Pop LP!!!)
8. Slug
9. Zooropa (1st half – “vorsprung durch technik”)
10. Mothers Of The Disappeared
11. Beach Sequence
12. Running To Stand Still
13. Can’t Help Falling In Love (Bono solo @ Sun Studios on Rattle & Hum workprint)
14. Trip Through Your Wires
15. If You Wear That Velvet Dress
16. In A Little While
17. Yahweh
18. Zooropa (1st half – “vorsprung durch technik”)
19. Dirty Day (live Zoo TV version)
20. A Man And A Woman
21. Stuck In A Moment You Can’t Get Out Of
22. Even Better Than The Real Thing
23. New York
24. Original Of The Species
25. I'm Not Your Baby (Skysplitter Dub - instrumental)