I feel that too many people give short shrift to Prestige. (I should say that I don't think that you're one of those people.) Whatever some musicians' feelings about it as a "junkie label", Prestige did record Eric Dolphy prolifically as a leader before any other label did, Prestige also recorded Steve Lacy, Don Ellis, Walt Dickerson (again, somewhat prolifically), and, just as importantly, Prestige recorded swing era veterans when no one else was doing so. Buck Clayton, Buddy Tate, Tiny Grimes, Shorty Baker & Doc Cheatham, Claude Hopkins, Al Casey, and Taft Jordan all made very good records for Prestige. You won't find any of those names on Blue Note or Riverside.
Whatever faults there may have been, Prestige also deserves its due.