Don’t recall your specific songs, and I’m not going back to find them, but I did like Dio, and really liked his drummy Vinny Appice. But since I’m not a “devil head,” I couldn’t in good conscience support Dio’s music. When he was in DP, it was different. Other than that, the issue wasn’t Black Sabbath AFTER Ozzie. It was one concert where I and everyone around me (four other people, none of them predisposed) thought Sabbath sucked and Yes was incredible.
Dio was never in Deep Purple, Ian Gillan was. Dio was in Rainbow and ELF before that. Sounds like you're a little confused.
Also Black Sabbath were known for having some sloppy shows back in the 70's due to drugs, alcohol and Tony Iommi's old Gibson SG going horribly out of tune. I'd like you to click the link in post 26 called Falling off the Edge of the World and tell me that they suck or are boring. Please. I have some tasty crow for you to eat. I'm waiting.