The most INTENSE song ever?

[Falling Upward]

Waaaaaay to many banRAB and songs for me to mention. In all different categories!

[Shauna Abdouche]

Is it crazy on my part that I think GoRABpeed gets boring?

[•♦J♦•]

Neurosis - The Doorway

[rose grl:)]

Dragonforce songs sound to similar to me for me to like them, and good song isn't all about speed. Also, I agree with lucifer sam.

[XxCaRnAgExX]

If you're talking "heaviest" song(s) ever, give the grind band Slough's demo a listen. I'm a massive grind aficionado, and I still haven't found anything as crushingly heavy and disturbing.

Emotionally "intense"? Give My Dying Bride's Turn Loose The Swans a listen (more specifically, the song "Crown Of Sympathy"). You might find it goofy, but you may as well try it out. That, or the live version of Indian Summer's Angry Son.
It's a little painful, actually.

[BettYbOOpBaBY]

For me it'd have to be something by Between the Buried and Me... More of Myself to Kill comes to mind.

[nemo09]

that's one of their best songs, but i'd say there are more intense saetia songs. maybe something like notres langues nous trompent.

[moving :(]

Paranoid Android all the way.

[Twilightgirl022]

funkadelic's maggot brain

[Darrickw]

If you're talking death metal Morbid Angel, or Deicide are very intense...