I am a PC user exclusively.
That being said, there is plenty of room for PCs and MACs in this world. For the business world and gaming, the PC is the way to go. For style and ease of use, MACs are king.
It all comes down to preference.
That being said, Apple has done very well with its "I'm a Mac/PC" commercials for a while, but now it is starting to feel backlash. Those commercials ended up reinforcing elitist attitudes of mac users, making those core users very happy, but at the same time it's making the rest of us hate them for those same reasons.
I rather like Microsoft's answer (albeit very late) with their "I'm a PC" commercials. It makes people feel good about being a PC.
~Le