How about favourite musicians,composers (not only guitar players) instead?
here is my list
Pop music - The Police,Steely Dan,Steve Wonder,Peter Gabriel,Joni Mitchell.
Jazz - Chet Baker,Toots Thielemans,Shirley Horn,Stan Getz,Joe Henderson,Keith Jarrett and a lot more
Classical - Chopin,Britten,Scryabin,Piazzolla
World - Djavan,Joao Bosco,Milton Nascimento,Egberto Gismonti(they all are great guitar players)
It's funny - almost no guitar players(except for Joni Mitchell,who does not really play a lot of guitar and all this brasilian guys)
I think it's really good for musicianship to listen more to instruments other then yours,to listen more to styles other then yours