Terje Rypdal, very obscure norwegian guitarist. His tone is very distinctive, he does lots of volume swells and has a vintage fender strat sound. Some of his stuff is bloody brilliant with great tunes and some ripping solos; the rest ( sadly) is crap.

Robert Fripp and Adrian Belew from king crimson; I don't know which is which but they;re both very weird and distinctive players. Check out indiscipline. I think fripp did that solo from Mate Kudesai with lots of prebends and volume swells, we're talking pure tone hear!