Mac are good to up to a certain level of video editing, animations, etc. If you go past a certain level you can't even think about using a mac. Things like 3D rendering, animation creation, etc. Have you ever seen what they were made on? I wonder how many game developers develop their games on Mac. Probably slim to none.
A simple processing tasks such as video editing for a movie or making music as a musician would be ideal on a Mac. It would be easier and more efficient on a Mac. I think that this is where a lot of people get the wrong idea that Mac is superior to PC in high end stuff. It's because they see many movie studios or even their favorite musicians use Mac for the movies and music videos.
OMG Avatar was made on Mac so Mac must be better than any PC. Chances are it probably was made on Mac, only just the editing part. Most of the CGs were probably made on PCs before it was imported onto the Mac to be edited.
I think both are great but it depends on who is using it for what purpose. There are so many time I see people use their Mac and I ask them why they chose Mac. 90% of the time I get the same answer. For school(word processor) and browsing websites. Most people IMO aren't even using the Mac to its fullest and should only be using a light low end PC. For the general audience, I think IMO, a PC would suffice and be more efficient than a Mac.
