I'll try to go in order of least liked (I'm leaving out October because I really don't listen to it enough to comment)
3)Wake up Dead Man (a polarizing topic doesn't make it a good song, musically it's poop)
4) The Wanderer (if Bono or a member of the group isn't singing it, I'm not interested)
Wake Up Dead Man is spectacular musically. The playing is inventive and complex, as is the lyric.
Not interested in Johnny Cash singing? What the...?
I don't like:
When Love Comes To Town
Love Rescue Me
Paint It Black
Fortunate Son
If God Will Send His Angels
Walk On (sometimes I love it, mostly I loathe it)
Elevation (sometimes I can tolerate it, mostly I hate it)
How To Dismantle an Atomic Bomb (All Because of You, Vertigo, and Original of the Species deserve special flogging - COBL is OK)
The Saints Are Coming (a great song that they massacred - maybe it's Green Day's fault, but U2 are there and don't make things any better)
Magnificent (sometimes it's ok, but the singing and lyrics usually bug me, and I find it really boring musically)
Crazy Tonight (just a sickening song, and the vocal quirks make it even worse)
Get On Your Boots
Stand Up Comedy (the worst song they've every recorded - terrible lyrics, no melody, boring riff, and a messy construction)
Window In The Skies (the actual worst song they've ever recorded - like having a soiled diaper rubbed all over my face)
Mercy 2010 (should be the worst song they ever released, but unfortunately it's not)