Hey, don't knock Van Halen.
Paranoid is indeed overrated, especially next to Sabbath's other albums. Van Halen is a great album, though. Lots of metalheads call it metal, but they're just afraid to admit that it's a rock album that annihilates 95% of metal. It's one of my favorites, even now.
There's just too much good 70's music. We need 20+ bands, with 4 or 5 voted off each time. Maybe I should resurrect the ultimate metal tournament.