An excellent selection!
A pity I couldn't vote, as this is the region I love. I would have gone for Omar Khayyám as I am rather attracted to Persian poets. A few years back in Iran I visited the tombs of two famous Persian poets and was very impressed by the youngsters that recited poems near these tombs and laid roses on it.
I'll happily read all, except for Mahfouz of which I read most last year.