Heaviest Symphony X song?

Death Of Balance

I love the heavy & nauseous atmosphere it's creating with all the odd time stuff. Nevertheless, the ending (with the guitar melody and the choir) kind of lifts the weight from the listener's shoulders.
 
Taunting The Notorious...

I was actually going to nominate that song too, but then I thought about it and it was a little too much like speed metal. The bass and guitar part rock though. The only bad thing about that song is that when Rod says "taunting the notorious", it actually comes out sounding like "TSSSAIIISSAJJJZSSEENUTSSSOOURIIIAAAAAAAAASSSSSS!!!!!!"

Yeah... I think that depicts it pretty good