I have to admit defeat,
@Mercurius . It looks like the published settings are very nearly as popular as homebrewing. I am very surprised by this outcome, and no mistake.
Where do you get that? I'm seeing about 55% homebrewing and 30% using a published setting, with the remainder in the "medley" camp.

(Dungeons & Dragons)
Rulebook featuring "high magic" options, including a host of new spells.