I, too, use both platforms almost interchangeably. Some of my clients want work done on Mac-only softwares, etc. -- Some certain things work better on each platform as vs the other, too.
I remember when the Mac seemed to have more features available for music work than the PC did, then the PC platform stuff seemed to race into the lead in that department, offering not only more available features but lower prices for the software or hardware needed also. I think that the changeover to Intel inside was (and may still be in some situations) a hurdle for the Mac platform to cross, but it is one of those things that happen to any technology when such a large change in something basic to the entire system is done. Mac is now catching up and likely may pass the PC again, in some details, I think. Only time will tell.
An evolving technology is never a static thing. That is why I encourage people to get in there and learn to use their new computing equipments right away -- each day that it just sits there is another day towards obsolescence, which happens at a rather startling rate as compared to past technologies. That is just part and parcel of the situation IMO, does not matter which platform.
The never-ending "religious wars" between certain advocates of either platform is a source of entertainment, though. *grin*
--Mac