Pretty sure there's a thread floating around that got binned. Anyway:
Nominate:
AC/DC - Let There Be Rock
AC/DC - Dirty Deeds Done Dirt Cheap (Aus)
Nirvana - In Utero
Radiohead - Kid A
Rage Against the Machine (self titled)
Led Zeppelin I
Led Zeppelin IV (zoso)
System of a Down (self titled)
Pink Floyd - The Wall
Pink Floyd - Animals
Second:
Radiohead - OK Computer
Nirvana - Nevermind
Metallica - Ride the Lightning
Need someone to nominate Master of Puppets and Justice for All as well, along with AC/DC's Powerage. Would nominate Azadi by Junoon but unfortunately that'd be a wasted nom on you people.