Top 5 best pieces for saxophone, in no particular order:
-Edison Denisow Sonata for alto saxophone and piano. One of the most impressive pieces I have ever heard for saxophone. I never got around to playing it when I was in school, I guess I was looking up to it.
-Prelude Fugue et Variation, Cesar Franck arr. Remco Jak. The best piece on the Amstel repertoire. We haven't played it for a while but next season we're starting it again. Can't wait :-)
-Florent Schmitt, Legende. I am listening to it now, in Delangle's new version, recorded on BIS. Beautiful music, I will start it this coming season.
-Hindemith Sonata, actually for horn, but also for saxophone. Very good music, Hindemith in general.
-... hm, maybe Creston Sonata. B composers tend to write A-pieces for saxophone, and A-composers B pieces (like Glazounow...)