Ike Turner's guitar playing kicks the combined asses of Eric Clapton, Jeff Beck, Link Wray, et al. Extremely underrated. One of many examples. Real rockabilly feel to it:
http://www.zshare.net/download/6194695761b04e5d/
My favorite guitar tone: Pop Staples of the Staples Singers on their really early records from the Vee-Jay label. (quality doesn't do it justice, but:
http://www.youtube.com/watch?v=qhtgZKC9tts) Especially on their version of Uncloudy Day.