I hate that about your PC but I don't have that problem. If your PC needs to be rebooted twice a week, something is wrong with it.
In my opinion, Mac is attempting to keep alive that which is a dead issue. I manage LOTS of Windows PCs and servers (500+) and I simply do not see the behavior any longer that Mac implies in their ads. Win95 and Win98 were indeed pains but since Win2000, my job has been a lot easier.
I'm not knocking Macs. I'm sure they are fine machines As I said, I just don't know anymore about them than what I see in their ads, which is their elitist, cool-kids-only, attitude.
I purchased and set up a very expensive Mac for a magagazine publisher in 1998. At that time Win98 was more reliable, and Nt4.0 was rock solid.
I personally started using NT4.0 around 1996, and never looked back. I now have a combination of Win2k and XP machines.