So I've heard everything except for IT, and assuming IT is as good as the other non-ITPOE Dream Theater epics, this is shaping up to be one of the best DT albums ever. Incredible, tight songwriting. Great, catchy choruses, probably the best I've heard on a DT album.
Not sure if it'll be good enough to knock SFAM out of the top 3 spot for me, but we'll see.