Among others, already posted and not:
Rent
Titanic
The Drowsy Chaperone
Howard Crabtree's Whoop-dee-Doo (off Broadway)
Dirty Rotten Scoundrels
and, although others may disagree, I love Sunset Boulevard's score
Next to Normal
Grey Gardens
Triumph of Love
Chess (bad show; great score; although that's somewhat older than the last two decades - yes, it is)
I don't like Side Show as a musical, but the more I listen to its score, the more I have to admit that the music is outstanding. It may well be the most accomplished score of the last two decades.
Not sure Falsettos qualifies as it was written before 20 years ago, although it first appeared on Broadway within the last two decades.
Updated On: 7/21/12 at 10:36 AM