One is the only thing that saves U2's horrible poppy phase, and only slightly.
They were good when they were folk-rockers, in the early years ("War", for instance), and recently now that they've rediscovered that.
But they ARE overrated.
Both bands are over-rated.
How about This Boy (by the Beatles) and This Boy (by Franz Ferdinand)? This is not the same song, they just share the same title... or whatever.