Patsy Cline’s singing voice is the best I have ever heard.
For male vocalist I would have to say Nat King Cole...
Nat King Cole once had a weekly TV show. It was cancelled because advertisers boycotted the show and it made no revenue... very sad.
Here is a link to episodes of that show... good stuff.
Here is Patsy Cline singing “crazy”
https://www.youtube.com/watch?v=pnJIWrt3DOg
I agree about her being the best female vocalist. Her voice had enough power to blow people out of their seats, but see always maintained perfect control.
I’ve seen Nat King Cole.
I’d counter that Frank Sinatra’s voice is up there as well.