Aw man... That's tough. Pop was around the time of my first U2 concert, and I believe it has some of Bono's best lyrics ever. But Zooropa is just a TRIP, and I love that there's so many different kinds of songs in one album. So, gotta flip a coin on this one........ Wow, Pop actually won, haha! Just realized that those two albums are neck and neck in the poll - it really is a tough choice.