Question: what are good high school musicals?
Answer: The Addams Family (Andrew Lippa, Marshall Brickman, Rick Elice), Theatrical Rights Worldwide (TRW)
Mamma Mia! ( ... 
The Little Mermaid (Alan Menken, Howard Ashman, Glenn Slater, Doug Wright), MTI.
Beauty and the Beast (Alan Menken, Howard Ashman, Tim Rice, Linda Woolverton), MTI.
Mary Poppins (Richard M.