That's highly subjective, if you don't care about MOBAs, RTS or MMOs at all (and I imagine much of the console userbase doesn't), there would be little/nothing exclusive to the PC to interest you. Of course if you love those genres, you'd want a PC.
I primarily play on PC (I do actually own a console now; I bought a Wii at a yard sale last week) and I don't care about MOBAS and have limited interest in RTS games. (I do play a couple of MMOs, but anymore it's more for roleplaying than actually playing the MMO part of the game.)
There are TONS of PC games that interest me. (They need not be PC-exclusive; upgrading the PC I would have owned anyway cost less than a current-gen console would have.)
*Turn Evil can now be cast on players. When used, it applies a small goatee and causes them to explain their diabolical plans while steepling their fingers.