When i was growing up i always had consoles, i always had PC's but i never saw them as competitors. I saw them as complimentary to each other, action/arcade style games and sports title have always been console go to's. For something with a little more depth, complexity and dare i say it maturity it was PC all the way. I would play a few games of mario or sonic on my snes/megadrive, get bored then shift over to my pc for a bit of xcom, syndicate and dune 2. They were different platforms that catered for different tastes and i enjoyed both.
Fast forward a few years and FPS become the big thing, suddenly consoles are being built around their ability to play shooters. At this point the greedy publishers step in, they think to themselves these games are popular we must make boatloads of them. From there it was a short step to design them for consoles as its more profitable, its at this point the PC became their enemy. Now we have lost the level of depth that PC games used to specialise in, and i think thats what vexes the PC crowd. There are very few true PC games made anymore they are mearly console games that get ported, and regardless of the quality of the port they lack (in their very design) that special something that used to set PC games apart (fallout3 is a prime example of this, while a good game its not truely a fallout game).