From what I've heard, Dead Heart. Narcosynthesis, The Heart Collector, Inside Four Walls, Believe In Nothing, the title track, HELL, everything: You can't go wrong.
However, Enemies of Reality is a damn good album in its own right. Tommorrow Turned Into Yesterday is in the running for Nevermore's best ballad and possibly best song ever.
As for the others...really havent heard enough. But Dreaming Neon Black has I Am The Dog: KILLER.