Well, my big influence on guitar is about to be exposed. Scott Henderson, is a fusion/jazz/rock guitarist extra-ordinaire. Incredible chops and tone. He's not a shredder - he plays intelligent but with attitude.
His latest trio release is a live album recorded at La Vee Lee in L.A. You can get a listen at http://www.scotthenderson.net/live.htm
His tone has improved over the years, and nowadays he uses a Custom Audio Electronics amp, OD-100 and he plays Suhr guitars. His main od/dist pedals are Maxon OD-9 and SD-9.
If you haven't heard him before, go buy this album. The sound is awesome overall, and the guitar tone is killer. Kirk Covington on drums also sings on some songs, while John Humphrey grooves on bass. The material these guys play (especially considering it's live) is mind boggling.
You can buy the album here http://www.amazon.com/exec/obidos/tg...glance&s=music