Ozzy has truly been blessed with having some of the best guitarists that there has ever been play for him. Vote for your personal favorite. Mine is Jake E. Lee. I find Zakk Wylde's playing to be technically great and downright annoying after a while. The vote is a difficult choice between Toni and Jake but I find I prefer Jake's style in most instances. I'm no musician but his timing just seems right to me. Bark at the Moon and The Ultimate Sin were absolutely killer albums (much can be attributed to Jake being on them), definitely the best 2 of Ozzy's solo career.