He was way beyond good to say the least. But just to ME the best guitar player ever is still David Gilmour.
Gilmour is also in a league of his own for sure. When you hear Gilmour playing he has a uniquely one of a kind sound as well. The rock world will also be in deep mourning when he passes away as well. One of my greatest regrets was not going with my brother to see Pink Floyd play (sans Waters) when they were at Bobby Dodd stadium. I think it was the division bell tour if I recall.
But today, the rock world is mourning for the one and only EVH.