Personally, for me it's either Lateralus or 10,000 Days, although I also like Opiate. Tool's cover of No Quarter is also one of my favorite pieces of music, ever.
But really, I cannot decide between Lateralus and 10,000 Days. I can listen to either album straight through, because they put together excellent instrumental pieces. The lyrical work of 10,000 days might win it for me, but I love the overall musicianship in Lateralus.. but again, 10,000 Days is no slouch there either, only a slightly different style it seems.
Yeah, I'm deciding. Both. No I will not say any other way. I'd prefer a double album of both Lateralus and 10,000 Days. Cannot possibly decide between either. lol
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