Well, what I say is that heaviness is kind of a spectrum, and DT's stuff goes all across the board. Also, the more far to a side a song lies, the more likely it is end up either really strong, or just plain weak (by DT standards)
In terms of really heavy shit,
-A Fortune in Lies kills
-Um, Metro #1, enough said.
-The Mirror/Lie suite are a highlight on an album of highlights.
-The Glass Prison is so powerful that the rest of the (highlight of the 00s, aside from ITPOE/Eightvarium) 7 step suite is almost overshadowed.
-Most of TofT, aside from TDS/ITNOG is bland (by DT standards)
-Panic attack is kind of an earache
-TDEN is, too, though I dig CM.
As for the soft shit,
-The ballads from I&W are why I prefer A-Six over it.
-A's contributions, IF, TSM, LSOAD, and SDV, are all faves of mine.
-TAMP and HY are very beautiful and well-.written emotional ballads.
-I don't care for Anna Lee
-Nor through her eyes.
-The Spirit Whatever is among my least favorite DT.
-The soft Six stuff all goes well.
- I cannot remember much of anything regarding vacant.
-I quite enjoy the soft Octovarium stuff.
-Repentance is cool, TMOLS, not so much.