Favorite rock/pop male voices

Vic Damone

Boz Scaggs

Gene Pitney

Harold Melvin

Steve Miller

Brendan Perry

BURTON CUMMINGS

Levi Stubbs

Gary Puckett

Tommy James

John Kay

John Fogerty

James Dewar and Dave Walker

Cat Stevens

A few I didn’t see above:

Willie DeVille

Gene Clark

Mississippi John Hurt

Sam Cooke

Wilson Pickett

Carl Wilson

Delaney Bramlett 

James Carr

A couple I've not seen listed are:

Glen Shorrock (Little River Band)

Dennis DeYoung (Styx)

The original Little River Band, not the hijacker cover band that exists today, were excellent storytellers. IMO, their best work never reached the radio in the U.S.