Who the hell crossed out Bruce Dickinson and put Paul Dianno?! 😯
No comparrison! Bruce is far more gifted, Dianno should stick to punk,though he has got better with age I'll give you that!
I'd nominate, (in no particular order) Marty Robbins(Pete Townsend is a big fan apparently),Jim Reeves (voice like ovaltine), Nat King Cole, Pavarotti? John Denver.
I like a lot of metal too but I reckon most would be classed as distinctive and not "good".
+1 for Warren Zevon (the late, great – one of my favourites)
Another for Robert Plant
Coope, Boyes and Simpson!!!
All of the Eagles' vocalists
JJ Cale
Rick Danko
Bruce Springsteen
Art Garfunkel
Dan McCafferty
John Fogarty
+1 for Freddie Mercury if I didn't mention him before
Graham Bonnet (particularly Night Games and the album Down To Earth)
David Coverdale on Whitesnake Live