I've listened to some stuff by Anaal Nathrakh lately, and these guys are rather interesting. I don't know quite yet if I'm really enjoying their stuff, or if it's just... so brutal, so raw, so in your face and original, that I have to listen to it. However, I've only listened to one of their albums, and I have yet to explore more of their discography to know if they progressed in anyway throughout their career. The album I own is In the Constellation of the Black Widow. If you guys are interested by killer black metal/grindcore, I'd say these guys do quite the job.
In conclusion, I've still added these guys to my imaginary list of very very brutal bands alongside with Balrog and Infernal Stronghold. Anyway... if you guys know them, let me know. And if you know any other raw and brutal bands, outside of noisy and distortined disembodied "music", I'd be really happy if you could share.
Anaal Nathrakh - In The Constellation Of The Black Widow - Full-length