That's not even the best Tool album, brah.

Lateralus is better, "The Patient" is my favorite song ever i think.

The lyrics on Aenima are sweet though. "Hooker With a Penis" is so pissed off, it rules.

Edit: I don't know what I'd consider the best album ever right now, but I do know that Dark Tranquillity - "Character" was the best album released this year, and it's not even close.