I have both versions, but really prefer the windows version, since it has more features that I use. You have to check for yourself, what you really want to have and need.

I need the leadsheet window, the vocal wizzard, the possibility to add text directly to a certain note, need the possibility to record vocal directly into the program etc. Love to have the practice box etc. etc.

For that the windows version is way better and offers quite a bit more stuff and comfort.

So long,
mos