What's a "holiday favorite"? My definition is broad. It includes specifically holiday- or winter-themed shows, such as A Christmas Carol (more on this one below). It includes shows with a seasonal link, such as Annie (Walnut Street Theatre, through Jan. 7) and It's a Wonderful Life: A Live Radio Play (Walnut Street Theatre Independence Studio on 3, through Dec. 17).
My definition extends to shows that tend to pop up around now. Think Beauty and the Beast (Media Theatre, through Jan. 14), Peter Pan (at the Arden Theatre Company through Jan. 28), or My Fair Lady (in a two-piano version at Quintessence Theatre Company through Dec. 17).
Kids, get your biggers to take you to a show, whether it's Peter or Beauty or Annie. You might also like My Very Own Polar Bear (Act II Playhouse, Ambler, Dec. 16-31), about a little girl and her snowy ursine pal. And you may well laugh very hard at Aladdin: A Musical Panto at People's Light in Ambler (through Jan. 7).
Want princesses? On Dec. 17, the Philadelphia Theatre Company presents A Dream Is a Wish: Princess Holiday Concert. It features no fewer than nine princesses, including Cinderella and Moana, and lots of holiday songs.
And, finally (adults), something different: Tongue & Groove's Secrets for the Holidays (Dec. 8), in which the improv zanies riff on secrets provided (anonymously) by you, the audience. Ho, ho, ho.