Sabbath is one of my all time favorite bands, and i've been listening to ozzy since blizzard of ozz came out. he could speak just fine then and he does now. look up some recent interviews with him on youtube.
http://www.youtube.com/watch?v=OkkScHRU8G4&feature=related sure his accent can make him a little tough to understand and he stutters a bit, but i had no problem understanding a word he's saying.
and everybody and their brother knows ozzy did an insane amount of drugs, but if you actually listen to the interview, he's not nearly as burnt out as he plays himself off to be in the show. it's an act, MTV at it's finest.
Edited, Nov 21st 2008 7:25pm by SenseiCrowder