My favorite Beatle. A massive, massive, massive influence on my life. I think I was about four when I first heard "She Loves You." Those riffs still blow me away every single time many years later.
A wonderful songwriter with an excellent sense of melody and a very underrated guitarist. Not the flashiest or most technical, it's often the subtleties in his playing that makes him so great. Put any other guitarist in The Beatles, and all those songs lose their character. You won't find classier lead guitar on a rock album than on "Abbey Road," for example.
And, obviously, the Elmore James bit under my profile is of course from "For You Blue"