Then there's The Sound of Silence by Simon and Garfunkel, later re-done by Disturbed. I can really appreciate both renditions. The Disturbed version has a lot more dynamics since it is a recent recording and it also has much more, let's say, personality and angst injected into the song. The original is still very good with the great harmony, but I am leaning toward the Disturbed cover because they build the song and make it so much more interesting.
Larry D.