Abyssic Hate, Acheron, Bathory, Behemoth, Bestial Mockery, Black Funeral, Black Sabbath, Bloodbath, Bolt Thrower, Borknagar, Burzum, Cannibal Corpse, Cathedral, Clandestine Blaze, Countess, Darkthrone, Death, Deathspell Omega, Decapitated, Deicide, Deströyer 666, Disembowelment, Empyrium, Emperor, Enthroned, Exodus, Forgotten Tomb, Gestapo 666, Gorgoroth, Immortal, Katatonia, Krohm, Leviathan, Mercyful Fate, Midvinter, Morbid Angel, Novembers Doom, Old Funeral, On Thorns I Lay, Opeth, Origin, Pentagram, Pestilence, Pestilential Shadows, Primordial, Reverend Bizarre, Sapthuran, Satanic Warmaster, Sentenced, Shape of Despair, Skepticism, Slayer, Sleep Terror, Tiamat, Varathron, Velvet Cacoon, Vital Remains, Witchcraft, Witchfinder General
A copied and pasted list of bands I appreciate.