A great Iommi/Sabbath album yes, but many would argue that it isn't really Sabbath at all without the original lineup. I'm probably amongst that crowd. For me, the greatest Black Sabbath album is Paranoid. It's shocking how that album nudges out everything else in their catalog. Song after song defines Black Sabbath. Hate the album cover, I think it's stupid. But the inner gatefold more than makes up for it.