Kind of off topic, but I think that death metal is generally heavier than black metal, though black metal is often darker and more evil sounding. Darkthrone-style black metal, with its thin, trebly guitar sound, is not all that heavy, whereas most death metal, with its thick, crushing guitar sound, is heavy as hell. I actually think that old school Swedish death metal, in the vein of Entombed's first two CDs, is some of the heaviest music ever. Anyone else here agree?