Often used to describe bands like Pantera and Exhorder. With mid-tempo riffs similar to those found in Thrash Metal and a tendency to focus more on groovy syncopation and heaviness than outright speed.
I agree almost verbatim with you Metallica stance, but I can't get behind the Morbid Angel statements here. All 4 of the Steve Tucker albums have been good to one degree or another, with Formulas being my 2nd favorite Morbid Angel album. They really only stumbled on Domination and Illud AFAIC, and otherwise have proven themselves as one of death metal's more solid institutions. You owe it to yourself to at least hear Formulas and Gateways, as they remind me of Covenant and Domination respectively, but without most of the blunders and inconsistencies from those albums.