Post them. No bands such as "Avenged Sevenfold", "System of a Down", "Disturbed", etc., because they all blow cock. And for the love of Christ, no Metallica.
3 Inches of Blood (Iron Maiden on ecstasy)
Baroness
Clutch
Cream Abdul Babar
Cult of Luna
Dethklok
Electric Wizard
Gojira *Insert whale noises*
High on Fire
Isis
Kylesa
Mastodon
Meshuggah
Neurosis
Opeth
Russian Circles
Sleep
Swallow The Sun