I have Finale 97, but it's long been buried in storage along with the computer I was using it on. I attempted to compose an opera on it, but I gave up about 50 bars in when I wanted to add an instrument, and it wouldn't let me. I am currently writing an opera by hand, but people find it too difficult to read, especially to perform from. I found it an extremely user-unfriendly program. I wrote a piece for solo cello, but it wouldn't let me put more than three lines on a page, and I had to hand-write certain things, like glissandi.
At one point, I had permission to use the Brooklyn College library, and there I attempted to use Sibelius for the first time. I attempted to input the first measure of a choral work. With the third chord, it would no longer let me put two lines on the bass staff, implying that tenors and basses had to sing the same note. I tried several times on several different computers, but got the same result, which I didn't save.
Noteflight gave me a file that was too big to save to a flash drive after writing fewer than five measures.
David Friedman recommends Overture, but I haven't had an opportunity to try it. The last time I checked, you could get it for $200 if you provided the serial number of your copy of Finale (which I would have to find), but it was more than twice that if you didn't. That's a lot of money to spend on a program that may not work for you.