PC gaming isn't better because of the better graphics. (Though you can have that if you want.)
It's better because it gives greater fidelity of choice and options.
Unless they bungle a port, any game on both console and PC is going to be better on PC due to the mod community.
PC's being the easiest to program for, are always going to be home to the most and best indie games.
And entire genres of games exist on PC. Not to mention the huge backwords capability advantage.
What the steam survey shows is just another superiority of PC gaming. You can spend as much as you want. It doesn't' matter.
Consoles really only have one advantage. Convenience.
Outside that... there really isn't much. Consoles each have their own exclusive games... but PCs end up having their own exclusive genres.
