wes borland is definitely not the mainstream kind of guitar player. He's more of a showman, but he's got a lot of talent in the things that he does.
One thing is, his riffs are the basis of what fred durst really raps about. There was this period of time when he left, and the Limp Bizkit outfit really sounded 'radio'...that is on the 'results may vary' album. Apart from the eat me alive track, the rest really sounded very hip-hop, and didn't really rock.
I believe that Borland's style of play is pretty much very inhibited by Fred Durst's style of music, but none the less. His detuned riffs are not only unique, they also appeal to a wide range of fans, from the punk to the hip hop genre.
I like his contacts...=)