The worlds best guitarists means nothing, what does best mean, if it is technical skill then it is probably some dude in his bedroom. Technical skill isn't very listen able.

However some guitarists have done more then others, some have achieved more. This argument will go round in circles because it is for the better part opiniums, but I have seen mayer clapton and bonamassa live (different shows) in the front row and I can honestly say that mayer was the best.

It might be that he was just playing better then the others that night but the energy of his performance was amazing.

Saying that I know that Mayer is not the best player, so we start back in the beginning.