Michael Bloomfield
Jimmy Page
Jimi Hendrix

#1: Michael Bloomfield. Unless I missed it, I don't think he's been mentioned. Tops by far for me. Selecting #2 & 3...and beyond...is brutal. But #1 is easy.

#2: "Favorites" in general tend to change as tastes evolve, but "influences" leave a long-term mark. Jimmy Page is probably my "favorite" who was also a real primary "influence".

#3. "Best" is different from "favorite". Who I think is the best at a particular guitar/musical skill is not necessarily my favorite. And there are "bests" in each genre, who should not really stand in comparison to one another. But, to have a little fun with a top 3 list, I'll stick with favorites who are also among the "best". So, #3 has to be Duane Allman. No...changed my mind...Jimi Hendrix. No, wait...

So, that's where my inclination is now. On another day, I might try to represent three different styles. Today, I guess I'm feeling the electric blues/classic rock thing.

Oh, and B.B. King. Even if he' not part of the answer, it's not cool to have a discussion like this without saying "B.B. King".