I think the Blackout is okay. Not great, but okay. The pre-chorus is too long, and the stupid rhymes and accents (the yeahs and uhs) at the end of every line in the verse are distracting and unnecessary. They're jarring and pull me out of the listening experience. I like the bridge build-up though. That's well done.
At the end of the day, U2 isn't good at these type of songs. Blackout is one of the better rock/rawk songs in their catalogue, but that says more about the quality of the rest of their rock/rawk songs than this being particularly fantastic. I don't mind those type of songs, but only if they get it right, and the one and only time they got it right was Vertigo. I won't go out of my way to listen to this song, and I don't know why you would unless you listened to nothing but U2 and had nothing else to use as a measuring stick. Its just got nothing special or interesting going for it.