Adjective
favoritest (not comparable)
(nonstandard) favorite
No chance of my getting around to this one, but the excerpts thoughtfully provided above put me in mind of one of my favoritest authors of late, one 'Peggington Noonington' over at Wonkette. Source: Internet
My newest favoritest chicky, (who also happens to be the Ombudsman's sister-in-law, which I only mention because it weirds him out that she and I are friendly. Source: Internet