As I tried to think of waltzes to list, the first one to pop into my mind was, duh, the Thenardier Waltz, from Les Miz. There are few comical waltz numbers in musicals, but this one sure is.
Despite its generally lukewarm reviews, Love Never Dies received decent comments from reviewers for the music, which included several waltzes, most notably the title number.
I like the waltz interlude in POTO that spins off from the Masquerade number.
The Carousel waltz is quite impressive, as well.
I'm tempted to add the Grand March from the opera "Aida," but I'm worried that people might think I'm serious, and brand me a total idiot.
-- Audrey
Audrey, the Phantom Phanatic, who nonetheless would rather be Jean Valjean, who knew how to make lemonade out of lemons.