Again, I saw them with and without Ozzy. I was never a big fan of Ozzy...I never thought he was a good singer and had no range. I considered him the weak link in the band. When they replaced him with RJD, I was ecstatic! Always loved Ronnie and thought he was one of the best vocalists in rock. Plus with his dark persona, he fit in well with the message Sabbath always tried to embrace. Their two albums "Heaven and Hell" and "Mob Rules" ranked right up there with "Paranoid" and "Masters of Reality" in my book. After RJD left, I failed to see them as Sabbath anymore until Ozzy joined them again.