Elizabeth Fraser, and it’s not even close.
Kanika Moore of Doom Flamingo is my current go-to. Her stuff with Tauk and Lespecial are amazing. Embarrassingly, I still can’t manage a YouTube link here, but she absolutely kills “Bohemian Rhapsody”, a very bold cover.
My all time favorites though, are a toss up between John Fogerty and Bradley Noel of Sublime. I favor soulful delivery over technical ability.
Edit for spelling.
Here you go.
I have a lot of favorites including many already mentioned.
But if I have to pick a favorite it would be Leonard Cohen.
His poetic lyrics delivered with emotional vocalization reach that melancholy part of me I seem to have been born with.