There are SO many good ones already listed. Dunno if I saw Gary Moore's name mentioned or not. Put him in there.
At this point in my 20+ year career as a paid professional lead guitarist, I have been back into Fender Stratocasters for a couple of years. I started out on them, then went to all the pointy heavy metal guitars (like Ibanez, Jackson, Kramer, etc), and then went to Les Pauls. After that, I ended up with Paul Reed Smiths. Build quality, aesthetics, playability -- all TOP notch. LOVED my PRS's. But alas, here I am again playing on these plain jane hunks of wood and metal called Strats. There is just nothing better to channel the Gods of guitar than this instrument -- just ask Jimi, SRV, Clapton, Knopfler, Gilmore, Yngwie, and some of the other greatest guitarists of all time what brought out their souls. And that's the way I play when I pick up my Strats. So I have no vote for
"the best" or "most overated" guitarist, but I can vote for THE FENDER STRAT as THE ELECTRIC GUITAR. Les Paul put his name on a fine instrument. But Leo Fender was one up on him...