A Perfect Circle - Thirteenth Step

Absolutely love this album - from start to finish, an entrancing experience that keeps me locked in whenever I settle down to give it a full listen

Machine head - The Blackening

I think this album captures the fury, wrath, ferocity and beauty that is metal music. It goes through the motions and every track has its own unique element that makes it distinct

Rosetta - Flies to Flame

I still can't classify what this is... Ambientic Metal is the best I can come up with, but it's engaging and relaxing at the same time. I don't know can you classify 4 tracks as an "album", but the run-time definitely makes up for it.

Miles Davis - Kind of Blue

Nothing better than sitting down with a bottle of wine or some brews, and chilling to this Jazz masterpiece. Blue in Green was one of the first tracks to draw me to Jazz and still gives me the chills

Only ones that come to mind at present, but I'll add more later if I think of them

Honourable mentions

Metallica - Master of Puppets

The band's Magnum Opus and undeniably an all-time great album, the only thing keeping it off this list is that I think Damage Inc. is a TERRIBLE song.

Tool - Lateralus

Love the main tracks on this album, but while I love the transition tracks on Thirteenth Step, I find the ones on Lateralus detract from the experience too much.

Silversun Pickups - Swoon

Again, another weak closing track that prevents this albums presence on the list.

Martin O'Donnell/Michael Salvatori - Halo ODST Soundtrack

Dismissing this as it's a soundtrack, but still a personal favourite as I can sit down and listen to this in bliss, in it's entirety, without a moments thought or hesitation

Edit: Formatting - Also forgot to add Miles Davis! :(

Megadeth's So Far, So Good, So What? (the ORIGINAL not the remastered!) is by far one of my favorite albums :)