Best Male Singers of the 20th Century

Don't know if anyone has mentioned this yet, but here goes.

The Smithsonian Institution commissioned a study to address this very question. They first made up a set of criteria, and then began ranking all the singers they could find. Of course, they expected Frank Sinastra to come out on top, but surprise! Fred Astair: someone known as a dancer, not a singer. I can't recall at this moment all the songs he popularized, but if you dig into it you will be astonished.

As the Holywood studio said at the time of his screen test:
"Can't act, can't sing, dances a little". Some "little".

Some others:

Philip Bailey of Earth Wind, and Fire
Aaron Neville

I'm with Dcktr; Martin Sexton!

Some favorites:

Frank Sinatra
Placido Domingo
Jimmy Scott
Little Willie John
Greg Allman
Joe Williams
Mel Torme
Roger Daltrey
Tony Bennett
Magic Sam
Big Bill Broonzy
Marvin Gaye
Sam Cooke
Elvis Presley
Johnny Hartman
Enrico Caruso
Stevie Wonder
Oscar Brown Jr.

WHAT?? Bob Dylan best singer? You MUST be joking! That spoiled, middle-class, New York city boy (old man, now)over-the-hill hippie (life is tough - the butler treats me mean and the cook won't make me no lunch)doesn't even have the least little bit of a singing voice.