I can't disagree with any of the suggestions. However, I cannot resist the temptation to cast one more vote for Victor Wooten. Yea, his solo album can shade a bit towards the corny form time to time, but he hasn't been voted the best bass player alive for the past five-or-so years in a row for nothing (by Bass Player magazine? I forget). Actually had the pleasure of running into him at the New Orleans Jazz fest this year and there's no denying it, he's the man.
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.