Composers: Sibelius vs. Finale?

For those composers/arrangers out there...which do you use or prefer? I always thought of Sibelius as the "mac" of notation programs, so I have a loose theory that mac users prefer it to Finale and that Windows users prefer Finale. Anyhow...discuss if you will

Well I've never used Finale but I've also never heard of anyone who's anyone using it either. Maybe it is just not popular in the UK, but everyone I know in the music world uses Sibelius and I do know a lot of people in the music world lol
I know that my best mate who is studying at Trinity in London also uses Sibelius along with Cubase and Logic for example and he loves all three. Never heard/seen him using Finale though.

And for what my opinion is worth, Sibelius is a great notation pro app.

Forgot to state that sibelius is what I use and would NEVER consider switching back to Finale