Hmmm...
Myrkskog's new album 'Superior Massacre' is simply punishing. I'd have to choose 'Over the Gore'.
In the same vein, I'd have to also say Zyklon's 'Deduced to Overkill'.
Also, few songs can get me... going... as much as Cryptopsy's 'Graves of the Fathers' and Dying Fetus' 'Killing on Adrenaline.'
Also...
Hate Eternal- 'King of All Kings'
Intestinal Disgorge- 'No Use Crying Over Spilled Bitch'
Most Krisiun, Lymphatic Phlegm, Luciferion, Mental Horror, and
Regurgitation could be counted as runner ups.