whoch one of the two is the worst would be an easier question to answer.

Rattle and Hum.

War>Achtung Baby>>>>>>>>>>>>>>>>>Joshua Tree
(boy, october, zooropa, unforgettable fire, all that you can't leave behind go in between)

there's something that I've always liked about war. maybe it's the raw sound, maybe it's the great delivery that bono's and edge's vocals make (as always), maybe it's lovely songs like seconds, the refugee, sunday bloody sunday, new year's day or 40.

after that there's achtung baby which is (almost, really really close) as good and majestic as the aforementioned. it's like putting on brand new shoes right after stepping on dogshit (rattle and hum), and shoes of the best kind. I especially like mysterious ways, until the end of the world, zoo station, light my way, acrobat, love is blindness, even better than the real thing, and wild horses

then there's joshua tree, which I never really understood how it is so critically acclaimed (please don't kill me). I mean, it's not bad, it has some awesome tracks (bullet the blue sky, red hill mining town, still haven't found what I'm looking for, with or without you, exit, trip through your wires) and is far from worst (rattle and hum) but the rest of it feels somewhat off. I particularly find "running to stand still" and "where the streets have no name" somewhat dull, and that always makes me question why they tend to be on many of the "best of U2" lists.

also, am I the only one who hates pop? there's not even a single track off that album that I could even listen to from start to end

Achtung Baby for me, just a wonderful album from the first song until the last. It's the last U2 album that hasn't got a duff track on it. I love Joshua Tree, especially Red Hill Mining Town, and it's the last time ever sounded epic. Both classic albums for me, but AB gets the vote for been slightly braver.

We all know Zooropa is the real winner here.

Look at their first ever appearance on Irish tv and hear what the guy who introduces them says. Quite amazing!