My favorite show?

As far as Ozzy concerts:

Diary of a Madman - that friggin' stage show was spectacular. Ozzy rolled forward on a throne at top of the stairs. Surrounded by three huge gothic arches spanning the entire stage. After he rose and ran down the stairs to the stage, smoke poured out from the top of the stairs as the throne rolled back and Tommy Aldridge’s drums were driven up by elevator from beneath the stairs into view. Tommy pounded out in his own double bass style the opening to Over The Mountain and the band ripped into song.

What a way to start a show. Still remember it to this day.