6. Megadeth, 'Dystopia'
After Megadeth leader Dave Mustaine witnessed half of his band abruptly quit following the touring for 2013's more commercial-leaning Super Collider, he responded by enlisting Lamb of God drummer Chris Adler and former Angra guitarist Kiko Loureiro to record some seriously ferocious and hard-hitting thrash. Tightly crafted tracks like "The Threat Is Real" and "Death From Within" attack with neck-snapping efficiency (and feature some deliciously dazzling fretwork from Loureiro), while "Fatal Illusion" boasts Killing Is My Business… And Business Is Good!-style roller coaster riffing. The guitar solo tradeoffs that populate the back-end of "Dystopia," meanwhile, recall the similarly-styled six-string sparring of Rust in Peace-era classic "Hangar 18." An unexpected and awesome return to form. R.B.