This is really hard, because there are so many scores that I find absolutely beautiful, but then I don't always listen to the full thing because some songs are kind of meh for me. So I'm going by overall score, not just some amazing songs (for instance, I'd love to put Floyd Collins or Carousel which are just GORGEOUS, but there are some songs in there that just don't cut it for me.)
In no particular order:
1. West Side Story - Probably the best score that exists, because it has such a great mix of fast-paced "catchy" songs and then lush, romantic melodies that just send you soaring.
2. Sweeney Todd - I'm not as fond of the Act II songs, but the score is just friggin' amazing.
3. The Light in the Piazza - Like someone wrote about Jane Eyre, just listening to it takes you away to another world.
4. The Last Five Years - I grudgingly said this over Parade (my third favorite musical) because Parade has some songs that I can skip over, but every moment in L5Y is equally as great as the last.
5. The Secret Garden - One of the most intensely beautiful scores that I've ever heard.
6. Miss Saigon - A few others have put it so I think that I'm safe. Whenever I see it, the score just moves me to pieces.
7. Ragtime - All you have to do is listen to the Prologue to know that you're in for something incredible.
8. Passion - I know that a lot of people find it boring, but I think it contains some of Sondheim's most beautiful work. And no matter how many times I hear it, it has the same emotional impact on me.
9. Cabaret - Do I even have to list the reasons?
10. My Life With Albertine - Haven't seen it mentioned yet, but the score is just so lush and beautiful that I couldn't resist listing it.
Jimmy, what are you doing here in the middle of the night? It's almost 9 PM!