Megadeth

Thrash, but with the intelligence to never stop. Each album is different and the same at the same time. There are even incursions into other musical territories. The discography is excellent, full of masterpieces and gems. Few betrayals: "The World Needs A Hero" and the stab "A Tout Le Monde" with Scabbia. Now definitely in decline, but we trust in the future. There are regrets: they are called Friedman, Ellefson, and Menza.