Mastodon - Remission 9/10
Seriously complex,yet catchy enough to bang your head
Megadeth - Thirteen 8.5/10
Heavy metal,at its best.
Blue Oyster Cult - Some Enchanted Evening (Live Album) 10/10
True classic hard rock to the core.
Shining (Swedish metal band) - VII Fodd Forlorare 10/10
Sorrowful and nihilistic.Very good guitar solos,vocals,and production compared to any other black metal bands.
Shining (Norwegian extreme metal/jazz band) - Blackjazz 17.7598966888 + Pi /10
MOST MUSICALLY COMPLEX ALBUM MANKIND EVER MADE.
As I suggested you before, Try "Led Zeppelin IV".
Bon Jovi - Cross Road
Death - The Sound Of Perseverance
MEGADETH - Discography