"I’m very proud of the whole collection, but if I were to single out any one era, I’d have to say [that] The Unforgettable Fire through The Joshua Tree was the most creatively satisfying for us. We really had set our sights on achieving certain goals as a band, creatively in terms of songwriting, in terms of production and sonic experimentation, and took quite a few risks." - Edge in the U2 era that stands out for him, 1998