[Benfica1]

Mark Tremonti of Alter Bridge

 

[bikerboy94]

Orianthi

 

[bikerboy94]

Steuart Smith

 

[Munkyfunk]

Nancy Wilson of heart

 

[serman005]

An excellent choice, IMHO.

 

[Brooko]

For me Mark Tremonti, and also Joe Bonamassa

 

[wuwhere]

Rick Nielsen of Cheap Trick.
Chris Impellitteri.

 

[serman005]

John Frusciante

 

[Benfica1]

John Frusciante

+1

 

[Fenn]

Mark Knopfler
 
I say this because people tend ot think of fancy guitar work as making a good guitarist where as for me this guy... well, I don;t have good enough words go continue.

 

[mcmurray]

Buckethead. Few can match his compositional and playing ability, yet most of you have never heard of him, let alone his music.
 
Here, try this: https://soundcloud.com/beau-mcmurray/buckethead-soothsayer-2006-02

 

[robm321]

Buckethead is pretty popular. I'd be surprised if most people don't know who he is. And he is rated as one of the best, so I don't see him as underrated at all. 

 

[serman005]

Davey Johnstone of Elton John's band.

 

[Spyro]

Terry Kath, great mention!  
 
Scott Henderson (Tribal Tech).
 
Mike Stern
 
Ken Navarro.  (Plays nylon string and electrical)  Check out this link and the solo in this song at 2:10 mark.  SO lyrical!  I could listen to it hundreds of times!
 
https://www.youtube.com/watch?v=jKUqd80KzB4

 

[ralphp@optonline]

Jack Wilkins - jazz
 
Rock:
 
Al Anderson (formerly with NRBQ)
 
Brian Stoltz (formerly with the Neville Brothers)
 
Larry Campbell (formerly with Bob Dylan)
 
Sonny Landreth (formerly with John Hiatt)
 
Buddy Miller
 
David Hidalgo (with Los Lobos)