If you start playing shooting games with gyro aim, you'll definitely feel the difference - because it's not even an option on Xbox.

As far as the haptics go, the degree to which cross-platform games use them really varies. Cold War had cool haptic triggers so you felt the recoil kick, but I don't think that was included in MW2. Some exclusives like Returnal leverage the advanced haptics in a really impressive way, too, but I don't think we'll see that in many cross platform titles.