Gabor Szabo is one fantastic guitarist. He must be included as one of the best, among jazz guitarists. The music form we call "Jazz" had evolved somewhat when Szabo came on the scene as opposed to when Grant Green originated.
Grant began playing jazz when it was a definitive form of music, and the word "Jazz" communicated this definitive form of music. This was before Miles trolley jumped the tracks and he played this same music; consequently I feel comfortable with my statement that Grant Green was the best "jazz" guitarist ever.
Since jazz is a music form that embellishes creativity and individuality, it's quite difficult to judge the artist. "Ice skaters" have set routines and their scores are based on how well they perform them. With "Jazz", there are so many variables; it's rare that we are on the same page when discussing it. The music has gone through so many changes that a meaningful conversation would require much "specificity".
Gabor Szabo first came to my attention on the LP "El Chico". This was hot in 66, 67, due to Szabo as much as Chico Hamilton the drummer. The title say's it all in regard to the music, this is red hot "Bull fighter jazz", and Gzabo provides that smokin latin guitar. This music is a delight to my musical sensibilities.
On "Mizrab", the LP I have that he headed; we get a different Szabo. First, the recording quality is exceptional, next; this display of his unique Hungarian individuality has aroused my insatiable appetite for new music, "I must have more Gabor".