When I first saw the thread title my thought was "duh. Octavarium"
Octavarium was the first DT album I ever listened to. Ever possessed. Ever legitimately owned.
Then I started thinking, FII is awesome. I may not really like Burning My Soul (version on the album), or It's cut out instrumental section (I refuse to acknowledge Hells Kitchen as a stand alone song)... (even though i dont mind Burning My Soul '96)... and I have some issues with You Not Me and Take Away My Pain (again, the album version)... But I LOVE Peruvian Skies (The song that made me say "hey, I am going to look deeper into this band"), I love ToT and Lines, and New millenium. So it was a very close choice for me. On 8vrm, I used to LOVE it front to back. Now These Walls, 8vrm, and sometimes Sacrificed Sons get listened to, but thats it.
Which to chooose?
hmmm.
.
Octavarium