Rank every era of thrash metal legends Megadeth's discography, from the raw aggression of "Killing Is My Business" to their latest offering "The Sick, the Dying and the Dead." This collection spans four decades of Dave Mustaine's musical evolution, including undisputed classics like "Rust in Peace" and "Peace Sells," the commercially successful "Countdown to Extinction" and "Youthanasia," experimental ventures like "Risk," and modern comeback albums such as "Dystopia" and "Endgame." Whether you're debating the merits of their thrash masterpieces, defending underrated gems like "The System Has Failed," or critiquing controversial releases like "Super Collider," this ranking captures the full spectrum of one of the Big Four's most prolific and influential catalogs.