there is no such thing as the "best guitarist in the world" but my favorite guitarist and one who I think has done a great job of creating a distinctive tone and style is Trey Anastasio from Phish....now don't go all crazy on me people....it's just my opinion and for some reason people who like Trey sure seem to get a lot of crap...but if you look at some of Phish's worked out songs...forget the jams for now...look at creations like You Enjoy Myself...Divided Sky...Reba....Stash..etc....if you really do understand music you have to admit those are pretty creative and interesting compositions...and those Sample in a Jar solo's.....legato bends galore....love em

and that tone of his (late 90's is the best) is just so creamy smoothe....I love it!!!