I could never overstate the importance of a musician's need to develop his or her ear. Actually, I believe that developing a good 'inner ear' - the art of being able to decipher musical components solely through listening - is the most important element in becoming a good musician.
Steve VaiIt's always funny to me when people use the phrase 'Best guitar player in the world'. There are too many variables such as technique, uniqueness, emotional investment in the notes, etc. But If I had to pick one, it would be Tommy Emmanuel. Watching him perform can be a study in artistic and virtuosic human achievement.
Steve VaiActing, at least for me, is very unreal, and when I'm doing it, I actually feel embarrassed.
Steve Vai