raxo, George, to me was more than the quiet guitarist as you so eloquently put it. He was the most complex character, and I prefer contemplative rather than quiet as an adjective to describe him. His guitar work was top notch and his keyboard skills were better then he was given credit for.
Granted he didn't churn out the congs like his mates, but there is an understated quality about his work. His lyrics as you mention, we witty and stinging at times. He could write cutting, biting lyrics as well as JL could, he could describe his love for his wife or for a sunny day (You know which songs I mean here) just as well as PM could.
Even his slide work was a way to reinvent his style, even after his divergence with the sitar was over. I love his demo of Gently Weeps and I can watch that man's fingers on the fretboard all day. Although I love John's Let It Be solo, there's just something about the solo George plays on it that trips me out - more the watching than the listening. I love the way his pick hand moves I guess....