I assume you mean adapted material, otherwise there is no comparison of an opportunity to be made. I think Drood was great. Just my opinion, and I saw the original show on Broadway twice.
Other shows that got it right (and by "right," I don't mean "faithful," I mean the show succeeds on its own terms):
Ragtime (mostly, except for one too many power ballads in the second act)
The Lion King
Grey Gardens
The Light in the Piazza
The Producers
Hairspray
Phantom of the Opera
Cats
Oliver!
A Little Night Music
Sweeney Todd
Wicked
South Pacific
Guys and Dolls
Fiddler on the Roof
Cabaret
Sweet Charity
Nine
Grand Hotel
Hello, Dolly!
La Cage Aux Folles
Missed a really good opportunity:
Mary Poppins
Carrie
Little Mermaid
Sunset Boulevard
Willy Wonka/Charlie and the Chocolate Factory
Chitty Chitty Bang Bang
Nick & Nora
Little Women
Somewhere In Time
Dracula
Jekyll and Hyde
"Jaws is the Citizen Kane of movies."
blocked: logan2, Diamonds3, Hamilton22