My wife and I have seen U2 in concert for the last 3 tours,(twice in boston, once at foxboro) and my favorite by far was The all that you can't leave behind tour. We saw them opening night in boston on the first leg and Bono voice sounded a bit strained. Still one heck of a good time and U2 is so talented, there is no comparison with any other band. Can't wait to see them again!