A lot. I'm a big Nirvana fan and even though Kurt isn't known for his guitar playing (nor is he a virtuoso) i wish he was still alive. He was a great muscian and i've always heard that he was always nice, especially to his fans. From your list here's my choices:
Stevie Ray Vaughan
Maybe Marley too cause he made some great music.
*Between The Buried And Me - 04/25/11
*The Smashing Pumpkins - 10/13/11
*Buckethead & That 1 Guy - 04/14/12
*The Melvins - 05/01/12
*The Smashing Pumpkins - 09/30/12
*Local H - 10/04/12
*Soundgarden - 02/01/13
*Alice In Chains - 05/15/13
-Including tons of local bands, such as: EDEN, Micawber, ect.