Martyr is fucking amazing, but they're far from being one of the more brutal death metal bands, but its o.k considering that's not what they're about.
I would say Origin mainly because of the inhumanitas album,
Krisiun and Myrkskog
No one mentioned fucking canada
home to cryptopsy, kataklysm, gorguts, voivod, quo vadis, martyr, neuraxis and many other amazing bands...
It should have at least been up on the poll