JHern wrote:The Comet.
Still the best new-player disc available, and you can find it in many plastics.
Err that is way rude teacher of form. To the point of pulling out hair and tossing the disc into garbage and never playing disc golf again. It needs familiarity with throwing motion and knowledge of good form and expert supervision so that we don't turn away new players...
The Comet is the best disc for somebody who REALLY wants to learn how to throw well, from the start. Learning to get a clean release, and get a good spin on the disc, shape lines, etc., can all be done best with the Comet. And once you've mastered the Comet, the entire rest of the world of discs is your oyster.
As you well know, the Shark, the Mako, the Buzzz, and many other discs are crutches for a new player, and can hide flaws in their form that will haunt them and limit their potential...forever. Unless they go back to something like the Comet after a while, and train with it. But why go back to it later, when somebody could get it going the correct way right from the start?
Anyways, it all depends on the intention of the OP. Does he really want to learn the best possible disc, or is he impatient to try a disc that will perform OK without requiring much in terms of actual skill?
Following up on the question, I would say step up to a Buzzz or Roc or Aftershock or Warship or Fuse or something like that after they can throw the Comet at least 250' on flat ground with no wind. Then Teebird or Eagle or Cyclone or Gazelle, etc..