Most passionate metal vocals in a song?

Also on songs like "Embrace the Endless Ocean" and "Fate of Norns", Hegg shows a surprising amount of passion.

Definitely Fate of Norns. I don't like the song, but he does really show more emotion than you'd expect from a death metal vocalist.

I really dig his vocals on Metalwrath, at least the first 30 secs or so. He just kinda throws himself into it entirely, like he's body slamming your ears. I realize that sounding pissed off isn't really anything new, but Hegg is just a total beast.
 
Plague Of Procreation by Solitude Aeturnus is the only thing coming to mind now.
 
"Will we ever meet again?

NOOOOOOOOOOOOOOOOOOOO"

Or in the epic song "Crimson" by the same epic band - Edge of Sanity
right after the 1:00 minute mark

"Oh what a sight to see"

I've always felt Dan Swanö has some extremely spine chilling moments in his singing, but rarely does an entire Edge of Sanity song sound like it contains passionate vocals throughout the entire length of it.
 
Nevermore - Believe In Nothing
Megadeth - Holy Wars... The Punishment Due
Katatonia - My Twin/Teargas/July/everything else they've done in the last decade
Opeth - Isolation Years
Novembers Doom - The Novella Reservoir/Twilight Innocence
Machine Head - Now I Lay Thee Down
 
The Morningside - The Shadows of the Past

It happens
every time the night comes
every time the autmn comes

it happens
every time the sorrow comes
every time the memories comes

and if you only can
just fall asleep and drift against the current
against the current of the time

all along the Shadow river
to disappear...and to dissolve

but it only becomes darker
and the rain is nipping along
roofs and roads
fallen off leaves

and the faint sound
of gray water flood
degraded trees silhouettes
degraded shadows

and it happens
every time you wish
to get back home

and the only thing've left
with my blessed sorrow
the shadows of the past
my endless damnation being alone
 
My Favorite Elf like Man... DIO!!
In Sacred Heart, Rock n Roll Children,
Really in just about anything...
you'll find that Dio is incredible.