With a catalogue like VdGG has built over the years, it's hard to choose a true defining CMoA that manages to tread the line between undeniably epic and the pompously overblown, but there's "Arrow", which is guaranteed to make the hairs in the back of the neck stand endwise. An example: at approximately 4:08, Hammill slowly lets his voice loose into the first frenzied scream of a Title Drop:
Hood masks the eager face, skin stretched and sallow
Headlong into the chilling night, as swift as any ARROOOOOOOOW!!