haven't played the xbone, but the dualshock 4 is a massive improvement on the ds3. i loved the new sticks, the convex/concave mix is surprisingly awesome and the triggers feel great. i only played a bit of the knack demo so i didn't get to play with the
touch pad, but it felt nice.
I have both and the best way I can describe it is that the ps4 took a huge step in the right direction and the Xbox took a small step in the wrong direction. I enjoy both though. I think the ps4 will be my go to system for for multiplats this time. If you
have any specific questions, just let me know.
I haven't played our One yet (waiting for Christmas), but I can say that the DualShock 4 may be the best controller I've ever used. The touchpad works well in Killzone. I like it better than the 360 controller.
I really like the Xbox 360 controller as opposed to the Dualshock II and III. I presume it will be the same for next generation, but I'm willing to give the Dualshock IV a chance since they made some nice looking changes.