The greatest debate in rock and roll: Ozzy vs Dio...
Ozzy’s prime was ‘70 - ‘81. Dio ‘75 - ‘84. Ozzy was very good for further until the early 90’s and just OK after. Dio was at least always very good after, his later years he aged more gracefully than Ozzy, not humiliating himself on realty TV and Dio’s voice held up much better as he aged. So long haul, Dio, but prime - not gonna compare. Can’t live without either.
Also, after Dio left Sabbath, Ian Gillan did the BORN AGAIN album. As good as any of the Ozzy or Dio albums, in my opinion. Ian’s vocals are amazing here and this song so heavy.