So, this is extremely late in coming, but oh well.
Black Sabbath - Paranoid (1970)
There's something about Paranoid which I find to just be fascinating. It's probably the mixture of heavyness, and more progressive elements. Or it could be the sheer monotomy. The songs on this album don't exactly vary a whole lot, "Planet Caravan" is probably the only truly divergent song on the entire record. But repetitive as it might be, Tony Iommi's blistering guitar riffs and solos make it more than a worthwhile listen. Power chords piled on top of each other complemented by drums that're rawly produced, and suprisingly literate lyrics about war, abandonment and the downside of drug use. What a great formula. My favourite songs on here are "War Pigs", "Ironman" and "Hand of Doom".