Freddie Mercury by a country mile. Honourable mentions to Bruce Dickinson and Bob Marley.
Kurt Kobain (Nirvana)
Jimi Hendrix
Lemmy Kilmister (Motorhead)
Bruce Dickinson (Iron Maiden)
Feddy Mercury (Queen)
Bob Marley
Mick Jagger (Rolling Stones)
Ozzy Ozbourne (Black Sabbath)
Jonny Rotten (Sex Pistols)
Pete Townshend (The Who)
Jimmy Page (Led Zeppelin)
Marilyn Manson
Dave Grohl (Foo Fighters)
Ville Valo (HIM)
Brian Johnson (ACDC)
Mike Patton
Freddie Mercury by a country mile. Honourable mentions to Bruce Dickinson and Bob Marley.
I suppose it depends on how you define a frontman. Is it based just on their voices and recordings, or does it also include their showmanship on stage?
I personally believe it is both. In which case it is hard to make a judgement since I haven't seen/heard all of them enough to make a proper choice.