While we're just throwing different variations on a theme out, I'm rather fond of the Pentatonix rendition (That they're local kids helps)
https://www.youtube.com/watch?v=gdVjVtpr55M(All acapella, no instruments used.)
Gotta admit, Disturbed and the original are pretty closely tied as my favorites....
Love ths song.... Of course, with 4 kids, it's been a long time since I've heard the ACTUAL sound of silence...