That is a tough question. My favourite albums would have to be a tie between:
The Beatles - Srgt. Pepper's Lonely Hearts Club Band
The Beatles - Yellow Submarine
Rage Against the Machine - Battle for Los Angelis
Beck - Odelay
The Beatles - Srgt. Pepper's Lonely Hearts Club Band
The Beatles - Yellow Submarine
Rage Against the Machine - Battle for Los Angelis
Beck - Odelay