Probably Rob Halford is slightly more famous than Bruce Dickinson. Sure, Iron Maiden eventually sold more than Judas Priest, but Priest achieved slightly more radio airplay. Besides, Rob influenced Bruce and many other great rock/metal vocalists.
Kurt Cobain is much more famous; he is a rock n' roll legend, whereas Bruce Dickinson is a cult artist.
Ozzy Osbourne
Stevie Wonder is more famous than Bruce Dickinson (the lead singer of Iron Maiden). Stevie's music is typically more mainstream than Iron Maiden's, so that's why Stevie is more famous than Maiden.
Um, hello! Mick Jagger, duh!
Ozzy Osbourne because of his show on MTV.
Kurt Cobain
As by my take, Ozzy Osbourne is more popular than Bruce Dickinson.Osbourne admits he still hasn't forgiven Dickinson - calling his behavior "childish" and "irresponsible."
Robert Plant
Rob Halford
Mario
Well, Darth Vader's not a real person; Bruce Springsteen is a real person, so he's obviously more famous.
bruce barlow