I hate U2, they are one of the very few bands who I would define as a guilty pleasure to myself. But I do have a couple of their records that I really like.
The first is Rattle And Hum, which is the sound of a band at an utter loss of what to do with themselves. It's half-arsed live tracks, some of which suck, and some random new songs that mostly sound nothing like anything else they ever did, such as 'Van Diemen's Land' which is my favourite song of theirs. I love the album for its sloppiness and un-U2-ness.
The other one I have is All That You Can't Leave Behind, which is U2 in excelsis - it's just a flawless pop record, and 'Beautiful Day' is an amazing tune no matter what people say. I love both of these records and a few more of their songs but them aside, I really hate U2 and would never consciously seek out any more of their catalogue I suspect.