For me, it's probably either Definitely Maybe by Oasis or The Joshua Tree by U2.

****ing hell this thread is old.

London Calling is one the best, of course.

Kaada/Patton - Romances

The live DVD is even better.

Definitely Maybe
What's The Story
The Queen Is Dead
Led Zeppelin IV
Highway To Hell
Nevermind The Bollocks
OK Computer
Nevermind

Too many spring to mind..

The Clash - London Calling

Dave Matthews Band- Everyday

Yes - Relayer

Wow old thread... and a noobfest! So I suppose I'll join in the fun:

Jimi Hendrix Experience - Axis: Bold As Love

Favorite Album
 

which is your favorite album?