PC shooter's don't have aim assist for the most part. Certainly none that I could see in UT99, Quake, Counter Strike 1.6 or Source. Console games I've seen it, really not sure why they put it in tbh, as everyone has to deal with the same rule sets for whichever game they play. The one thing I will agree with you on is Destiny's is ridiculous. The way your crosshairs are pulled off of your target by something else drifting in front is horrendous.