Most sophisticated and intelligent musician

Let's stay with not classical musicians.
It's John McLaughlin for me.
How about ..Frank Zappa
Robert Fripp or Steve Hackett.
Joni Mitchell needs to be on this list.
Miles Davis, Mike Oldfield. I also can go with Mapman's list.
Louis Armstrong
Duke Ellington
Miles Davis
Thelonious Monk
Bob Dylan
Brian Eno
Peter Gabriel, Frank Zappa, Mark Knophler, Chet Atkins come quickly to mind for me.
Mark Knopfler
Elvis Costello
Yes, Chet Atkins ranks up there!

How could I forget The Duke?

Peter Gabriel...good pick also.

I'd toss Tony Banks in there also.

That's at least 3 former Genesis members. Not too shabby....

Add Phil Collins. That's 4 ex Genesis guys!
Yup, Miles Davis too.
Steve Morse.
Bryan Ferry, Beck, Chris Difford and Glenn Tillbrook.
As far as intelligent musicians go, it's hard to top Queen's Dr. Brian May, who in October 2007 completed his PhD thesis in astrophysics, entitled "A Survey of Radial Velocities in the Zodiacal Dust Cloud".
Patricia Barber
But it took him decades to do it. I bet his "radial velocity" is off the scale.
Kurt Cobain, he did redefine rock and roll.

Wynton Marsalis...jazz.
"Kurt Cobain, he did redefine rock and roll."

Not Courtney Love?

She's been looking quite sophisticated of late.

Just kidding. I am a Kurt Cobain fan but am kind of mad at him for not sticking around.
Rundgren. Bad Religion's Greg Graffin. David. Byrne.
Don't forget those who did something new, like Les Paul and even Chuck Berry.
Zappa is unsurpassed.
Peter Gabriel
Frank Zappa
Van Morrison
Brian Wilson
Peter Asher
Booker T Jones
Jon Leventhal
Bob Dylan
Donald Fagen
Robert Fripp
Paul Simon
David Byrne
Thom Yorke
David Gilmour, Al Dimeola, Neil Pert, Tony Levin, Agree with Knopfler, Clapton,maybe you should have narrowed it by instrument. Names just keep popping in my head.
Bill Bruford, Stan Kenton, Emerson/Lake/Palmer, Stanley Clark, Bela Fleck
Lyrically, Beck's stuff on Odeley was sick smart. I'd also add Paul Simon and Tom Waits for lyrics. Theo, props on Gilmour for his beautiful phrasing on guitar...he hits licks and subtleties that one cannot imagine being played any other way.
I interpreted the post as asking about traits of the person, not of their music.

So I did not include intelligent musicians that do not come across as sophisticated in general as people, even if I might think their music is sophisticated as a result of their intelligence .
Neil Young
This is silly but ...
1. Leonard Cohen
2. Bob Dylan
3. Jon Anderson
4. Joni Mitchel
5. Laurie Anderson

My vote is a DEFINATE NO on Kurt Cobain on the intelligence
Hulk Hogan
@Sit: Yes, this is a bit silly. It's difficult to have an opinion about someone's "intelligence" based on their artistic expression.

I agree that Leonard Cohen is a bright man. Very well spoken and thoughtful. I add him to my list. :)

I have issue with Curt Cobain, too. It's important to remember that he left family, fans, wife and child with his burden. A true intelligent and caring person would have been more thoughtful of himself and the people around him. Suicide is never a smart move, no matter who it is, and what they accomplish. :(
zappa. honorary mention to dylan.
King David....
Roger Waters
Ray Davies
John Paul Jones
John fogerty
Ray LaMontagne
Yoko Ono and Tiny Tim for sure,oh yeah,also Garth Brooks. :)
I think I'm a sophisticated and intelligent least in my my garage....
King David. Could you say a little more?
Agree with a lot of the responses here, particularly Zappa.

One to add that I didn't see on the list is John Coltrane. Maybe not in the minds of many, but even today I find him incredibly sophisticated.
Shane MacGowan.
Anyone recognize this multi-millionaire guitarist from the band that has more sales than the Beatles - over 300 million albums worldwide.

who is this?
Oh I should add that this pic shows him receiving a PHD - yep you read correctly - a guitar god with a doctorate in Astrophysics...
david bowie
Yes, he was a simple (and a lonely) man, but all others pale in comparison to George Gobel.

George, by the way, did endorse David Byrne to be his living successor.
I have to agree with Gawdbless. It takes a genius to stay alive living the way Shane MacGowan does. Drugs and alcohol
Inna : I m sure you have heard of that guy King David. His notiarity, I am sure will outlast that of Garth Brooks as well as Pink. Integellant enough to become king. As well as good enough with a slingshot to render the NRA irrelevant. Many many copys of his lyrics exist today and he has played before Kings as a juvinile.

Do you know an intellegant musician that can top that.
What flesh and blood musician can compete with a myth?

Is it necessary to bring religion into an audio discussion?
Religion, philosophy and audio may not be a bad or irrelevant subject. Why not? After all what we really hear and why is unknowable.
Pat Metheny
Dave Holland
Kenny Wheeler
Keith Jarrett
John Abercrombie
Bill Frisell
Tvad to answer your question, Is it necessary to bring religion into the discussion ? My answer and subsiquent question is ,...No... and Why did you?
Your first proposition was not stated by the OP unless I read it wrong.
Tvad please bring something to the table beside critique.
Lewhite, I already offered Dr.Brian May as an example of an intelligent musician.

Hey, if King David is your contribution, then so be it, but I'm guessing from the original post that Inna was looking for something a little more contemporary.
I don't see why 'classical ' musician should be excluded. Seems unfair.
So from the still living, I'll nominate Pierre Boulez.
Dr. Dre (he is a Doctor)