I second the thought on "Bad". At first, when I was first getting into U2, I would think "Would this song just get to the damn point already? It's the same damn pattern over and over again and this Bono guy seems to be singing nonsense!"
Now, after reading what the song was about and dissecting the lyrics, and experience numerous live versions, I can say it's one of my favorites.
Of course, the recording still doesn't hold a candle to the live versions. I'll agree that "Where The Streets Have No Name" is the best live song, but I think "Bad" comes in at a very close second. That song is so transcendent live, it's heartbreaking.