Johnny Winter, B.B. King, Eric Clapton, SRV, Buddy Guy, Robert Johnson, Muddy Waters, Hendrix did some GREAT Blues, Bugs Henderson, Greg Allman, Janis Joplin, Etta James, Big Mama Thornton.
Well there's so many good blues singers but here are some of my favorite ones: Stevie Ray Vaughan, B.B. King, Eric Clapton, Etta James, Muddy Waters, and now Bugs Henderson.
Alvin Lee (10 Years After), Fabulous Thunderbirds, Jeff Healy, George Thorogood
There are so many great blues groups to choose from & styles of blues as well. I would have to say my tops are SRV, B.B. King, E. Clapton, Johnny Winter, Bugs Henderson & The Shufflekings, Muddy Waters, Robert Johnson, Etta James, Janis Joplin just ripped it up when she was on stage, her favorite style was the blues, and her fav blues lady, and I have to agree, was Billie Holiday. The list just goes on.
One of my favorites ist this one...... a german Blues-musician...

Henrik Freischlader - Cry Again

just klick on the tube link and listen.

Kind regards from Hamburg / Germany to @all the Blues-Fans :wink:
...from Canada

Layla Zoe - You won't call

Layla Zoe - Black Oil
of the old crew Elmore James is my No1, just those first few chords get my whole body shaking (yes even now), Also the Original Fleetwood Mac with Peter Green and the slide guitar of Jeremy Spencer what a band..
I have a couple of SRV CD's, but my favorite now is Derek Trucks.
I also like  Eric Clapton and  John Mayer.

Billy D and the Hoodoos ... Hide My Heart ... ... wOR0N6Md4Q

Bruce Willis .. Devil woman ..
Joss Stone & Jonny Lang .. when love comes to town .. ... wOR0N6Md4Q

Brian Evans ..I'm A Traveller .. ... wOR0N6Md4Q
Cannon's Jug Stompers, obviously ;)

Un morceau de blues que j'aime particulièrement 
Bonjour de France

Tom Waits - Get behind the Mule 
c'est super le jazz
C'est du blues ;)
Animatou wrote: C'est du blues ;)

Quite so !

And how about Junior Wells in 1966, the year I saw him live in Paris ?

(with Otis Rush on guitar, in case you wonder... )