Lists like this are always a matter for debate. If you choose to add someone with a relatively small body of work like Stevie Ray who to you take off the list. Stevie's talent was no doubt great, but his potential was unfulfilled. Arguments could be made for Jeff Beck, Jeff Healey, John Mayer, Jorma Kaukonen and many others. This is one man's list and I like the variety of his choices.
