Best Albums

Some great shouts here for Metallica, AC/DC, GnR, Zeppelin etc.
I'd like to add:
Kyuss - Sky Valley
Megadeth - Rust in Peace
Iron Maiden - Live After Death

Edit - evidence here of a few people preparing their lists in Word beforehand ;o)

Another couple of good ones there, although, I'd take Blues for the Red Sun over Sky Valley.

And fuck it, while I'm here you can chuck Pantera - Cowboys From Hell onto my list of doom.