Live fill-ins notwithstanding, 10 men have fronted Black Sabbath since their 1968 founding, in stints of wildly varying length. The assortment of songs sung by Ozzy Osbourne and Ronnie James Dio traditionally hog the glory among fans – at the expense of some first-class material from less fashionable and commercially successful line-ups. Here, Metal Hammer salutes the best of the rest from heavy metal’s godfathers.
