Well then…don’t wish to be ganked for trolling soooo…
Bruce Dickinson
Saw them last year and he still sounds good. 
i saw iron maiden a few years ago. 
my answer is tom waits tho
I love me some Steven Wilson, lead singer of Porcupine Tree.
I don’t have set favourites but I enjoy
Anthony Green of Circa Survive
Eric Nally of Foxy Shazam
Kevin Steinhauser of Math The Band
Claudio Sanchez of Coheed and Cambria
my favorite singer is Michal Jackson.
John Daker beats all of your singers
Go on youtube and search for John Daker.
Out of these gentlemen I’d say…
Scod (bloke in the middle).
Tripod forever!
Chester Bennington. (Linkin Park)
Bruce Dickinson is a colossal legend, especially after the Blaze Bailey nonsense (OK, he wasn’t terrible, but compared to Bruce…)
Because I now have to say something more original, erm… I saw Heaven & Hell a couple of years ago (Black Sabbath with Dio fronting instead of Ozzy) and in my opinion he was loads better than Ozzy. Brilliant singer
Oh, and Luciano Pavarotti. Of course (I’m actually serious 
)
Actual singers, not rappers:
Emily Haines
Connie Mitchell
And then all these women I hear singing on trance tracks.
Dio’s voice is indeed mind blowing. Never heard so much power in a metal voice.
Chris Martin, Chris Cornell and Johnny Cash.
Feck off.
Kurt Cobain is a screamer, not a singer.
Apparently you haven’t listened to any hardcore.
https://www.youtube.com/watch?v=A5xMDo0p_uc
Kurt Cobain is a girl compared to that.
Do you smoke crack?
Cobain wasn’t the best singer in the world, but he was actually pretty decent at singing, especially in the 93-94 era. Most of the time he just didn’t care enough to sing well.
I completely Agree with you, even if I was a big fan of Him, there are plenty of singers who are better than him, but still you gotta respect his music