Stoner rock is a genre that always surprises me (in a good way, mind you).  Dead Gallery, for example, are a heavy stoner/psychedelic blues band out of Austria, and the music they make reminds me of really old rare hard rock albums you would find in collector fairs (think of bands like Black Widow as an example).

Musically, the guitar playing is great, the vocals are raw and loud, and the production is surprisingly clean without sacrificing the power of the tracks.