In reality, most of the best selling 360 games were on PC.
Excluding Kinect Adventures, Halo 3 was the best selling exclusive 360 game. Followed by Halo 4 and Halo Reach.
Gears of War sold 1/3rd the number that Halo 3 sold, let alone the vast multiplatform games on it.
People actively chose Xbox 360 over PC, just as they continue to choose console over PC.
Fanboys are in their feels.. and they need to get over it.
I always told myself i would go back to PC gaming, if Sony decides to put its games on PC. I actually tried to go back a couple of years ago and you know what? I just didn't like it anymore for various reasons. The shitton of launchers i had to use were annoying but the dealbreaker was shader compilation stutter. I ended up selling the GPU just a few months later and went back to console, simply because i didn't have to deal with any of this stuff.
I just don't see the average Joe spending all this money on a gaming PC just because Sony decided to put God of War on PC. Casual gamers want simplicity and PC just isn't that. Sure, it's much easier than it used to be 20 years ago but it still doesn't compare to the ease of use of a console.
PC and console are just two different markets, even if the games overlap.