Yeah, Pig Destroyer is great. PitY is classic, I really liked Terrifyer, and even though Phantom Limb is their worst it apparently didn't let me down as much as it did everyone else.
Haven't heard Bleeding the Priest V5? Pretty much one of the best damn releases to come out of Australia ever imo. Saw them live a little while back as well, absolutely killed.
The riff around 03:20 in Feeble Screams represents everything that's good about Burzum. The drum beat gives me the picture of "another step that's not leading anywhere", and it fits so good with the lyrics.