Best musician in the world?

A question posed in another thread, in my view, although musicianship is hardly a sport to be measured as such, the most universally prodigious musician is probably Shawn Lane. He is definitely the world's most phenomenal/inimitable electric guitarist. And he is a world-class pianist and saxaphonist as well.
Not sure who the best of all time is. However, Jeff Beck is in a league of his own when it comes to the electric guitar.
Maybe you should have said "favorite" not best. These posts do not seem to be objective. If we are talking about someone alive, perhaps Quincy Jones should be on top of that list. He is the most accomplished musician I can think of, with significant contributions in every field, performance, composition, arranging, conducting, producing, publishing,executive administration and mentoring younger musicians.
I agree with Bmpnyc in theory anyhow. Quincy has done all of those things. However, Frank Zappa has also accomplished these things. I do not believe he was the most talented guitar player, but he was a brilliant conductor, producer, mentor (some very famous musicians got their start with the Mothers, eg. Steve Vai and Adrian Bellew), and arguably the greatest contempory composer of the 20th century. Is musicianship the ability to perform the music or conceptualize it? I think that Kacz's comments regarding how Neil Peart makes him feel when he listens to the music are very relevant (BTW - don't underestimate Peart's technical talent). As an example, Steve Vai is undeniably a better technician than Jerry Garcia, but I would rather listen to Jerry's guitar solo in Unbroken Chain (Mars Hotel) than hear Vai deedle-deedle-deedle away at a thousand passionless notes per second. I tend more towards the artists vision than execution or ability to play several instruments. In that light, Woodman's choices of Miles Davis and Jimi Hendrix, moreso, are very compelling. By creating Modal Jazz, Miles Davis did more for the evolution of Jazz than anyone had in a long time. Miles was also a great musician. Hendrix did more for the evolution of contemporary electric guitar than Chuck Berry. Additionally, Hendrix was an exceptional guitar player. But in that light, there are many others whose efforts have created new and interesting evolutions in music. How do you determine which one is more relevant than the other?
The Best...? he is, probably somewhere, cleaning the floors and emptying waste baskets...! The list above, is rather sad one...just as the world is. TURNING THE FOOLS INTO RICH HEROES!! The last, of the best ones, probably died 150 years ago!