Eric Johnson is a hell of a player. I love him.
How I first listened to him? In Steve Morse Band - Stand Up record. I thought "wow if another guitar player is here along with my favorite one, Mr. Morse, then he must be another guitar god or a company record favorite"
The two of them were right. Eric is a monster. His tone is not matched by anyone else.
About who's the best between he and Schon and anyone else I won't get into. Far different styles for each one.
For instance, I believe Schon played a monster fusion guitar line in Jeff Berlin Champions record (along with Mr. Steve Smith), and I never imagined he could play fusion-style.
So far, I love what Johnson did and the style he did it, and I love what Schon did along with his compositions. As much as they play great music it doesn't bother who's a better guitar player or has the better tone.
forgot to say Ah Via Musicom is my favorite record, though Manhattan on Venus Isle is a monster tune , and Bloom is another great record.
Cheers!
