I have to admit, this was an interesting point, though not entirely accurate (The Unforgettable Fire isn't "all or nothing" in its "genre hopping," for example):
"The bands’ awkward genre experiments are about equal in merit, but the edge here goes to R.E.M. simply because they seem willing to try this stuff more often and more casually than U2, who appear to be all-or-nothing with their genre hopping—could you imagine “When Love Comes to Town” on The Joshua Tree? “Lemon” on Achtung Baby? Thought not."