A more appropriate and specific title would help people identifying the subject of your question.
You can also create a poll via the thread tools.
I use Mac OS X 99.9% of my computer time, and when watching videos, I only use Mac OS X.
I missed BS Player's capability to change the volume via the scroll wheel, when I started using VLC, but since VLC Player has that functionality I don't miss it anymore.
And the DVD player software titles for Windows are butt ugly and confusing, even before I set my eyes on Mac OS X.