I dunno. So far, I like Vicarious. I'll wait and see like the rest of the world to find out if the 2nd of May yields a surprise two-disk album, or if that live DVD is ever going to show up, stuff like that.
Maybe not their best work, but better than Opiate at least. Still better than most shit I hear on the radio. If they've got a secret album in the wings I'll be all over it when it drops, but to be honest that sounds like a hell of a conspiracy theory, even for Tool.
Lateralus is a hard album to live up to. I'm seeing them on the 4th, I'll let you know if they've pulled it off.