Rush - Fly By Night, Xanadu, 2112 (all riffs in 2112)
Symphony X - Communion and the Oracle, Rediscovery, Odyssey (15:02 - best SX heavy riff imo), The Damnation Game,
Joe Satriani - Crushing Day
Edgar Winter - Frankenstein (all riffs in this song are excellent)
Queensryche - The Whisper, Neue Regel
Diablo Swing Orchestra - A Rancid Romance, Lucy Fears The Morning Star
Ugh. Too many.