Sunn O))).
other than that, most other things avante-garde stuff i've heard, from Beefheart to Animal Collective's first few albums(which are almost NOTHING like Merriweather Post Pavillion), i can get into and enjoy
hell, i even liked that Merzbow track, what cd is that on?
EDIT: hahaha, just as i was typing this, Butthole Surfers came on