The Doors - Morrison Hotel, 1970
While I can't rightly choose a favorite Doors album, being that they're all pretty equal in my opinion, I can say this one was most important to me. I remember in sixth grade hurrying home from school before my dad got there so I could sneak this tape into the player and play Peace Frog at an unreasonable volume.
Still holds up and there's a handful of pretty underrated tracks that are simply awesome, Queen of the Highway, Land Ho, Ship of Fools