True metalcore is, at its heart, an American phenomenon. Sure, the UK and elsewhere have spawned plenty of metalcore acts over the years. But the genre emerged wholly from the U.S. with the rise of metallic hardcore bands in the late '80s and '90s.
Today, the term can be defined in a million ways. Is it metallic hardcore? Punk-influenced metal? Is mathcore metal, or is it something entirely different? We can debate these questions all day – and believe us, we have – but we've weighed up the merits of thousands of records and determined that these are the all-time best metalcore American albums.