The Top 40 Greatest Rock Riffs of All Time as voted for by YOU are: Deep Purple - Smoke On The Water. Black Sabbath - Paranoid. Uriah Heep - Gypsy. ... Black Sabbath - Symptom Of The Universe. AC/DC - Highway To Hell. ... Jimi Hendrix - Voodoo Chile. Metallica - Enter Sandman. ... AC/DC - Riff Raff. Guns N' Roses - November Rain. Apr 18, 2017