1993 is the year for me:
Check Your Head - Beastie Boys
Automatic for the People - R.E.M.
The Chronic - Dr. Dre
Selected Ambient Works 85–92 - Aphex Twin
Lazer Guided Melodies - Spiritualized
Rage Against the Machine - Rage Against the Machine
Arrested Development - 3 Years, 5 Months and 2 Days...