While noting that everyone has their opinion, most of the stuff mentioned is pretty boring to me. My vote is for Iced Earth - A Question of Heaven off The Dark Saga - a fantastic closing track. A close second is Live to Lose by Godflesh off Us and Them - an unbelievable track, written many years before I think but released on their second last album.
The Beatles get a mention on this thread, as per most music threads on letsrun, to compare them to someone like Iced Earth is to compare (for you American blokes) a '57 Chevy with a 2007 Corvette Z06 - the only reason you prefer the old model is because you a nostalgia freak, the new version is better in every possible way. To complete the Chevrolet analogy, Bruce Springsteen is the equivalent of a Chevy Malibu - relentlessly middle of the road without exciting anyone with half a brain.
Cars have improved a long way and so has music, there is much much better shit than the Beatles/Dylan/Springsteen rut that a lot of you blokes are stuck in. Open your minds people...