I'm in similar situation as you, game usually on PC although mostly playing wii u right now and have ps4/3ds/vita. I'm contemplating buying an xbox one controller for PC to replace the 360 one I already have (with wireless adapter). I have hooked up my PS4 controller to my PC a few times and it works fine when its hooked via USB cable (and charges the controller too).
I won't use a ps4 controller all the time on PC though, first it requires wired connection afaik. Second games still show the xbox buttons in game so it can get a little confusing at times, especially on QTE kinda things. Also with the touchpad thing in the middle that will never be used its a little awkward.
If you have any Sams clubs near you they are apparently clearing out the titanfall controllers @ $50, you pay 10% extra if you are not a member. can check if any stores have it near you. I love the design/colors of the controller and was going to go get one today if I can find it
http://www.samsclub.com/sams/xbox-one-controller-02-10-14/prod13020096.ip?navAction=