sadly a large percentage of big name games that come out on pc are designed with console in mind.
most recent example is dark souls, holy hell that game was ported horribly. you turn game on and it asks for you to press the start button. uh ok is that enter key? then, press the large green A button to select the menus! WHAT? game also only plays at 720p like consoles, thankfully there are mods that let you fix resolution. it's also completely unplayable without some sort of gamepad, luckily the PS3 controllers work great on pc (even though I have to trick computer into thinking its an xbox controller)