Quinn's AA
It's been problematic sense she was released, over two years ago. I believe that it can be simply solved by increasing the delay on the audio effect by 0.05 - 0.10 seconds.
Yes, she has other problems, such as Harrier proccing, and the fact that her ult doesn't make sense for an ADC, but those would tolerable if she had a decent AA as she would be able to farm decently. Her AA is such a problem that I find that AS is more valuable for last hitting than AD, as the increased AS means significantly less missed last hits.
I believe that changing the delay on the audio effect by +0.05 seconds will significantly increase how her AA feels. I don't know how difficult this would be, but I have a hard time believing that it would be too much more than going into her file and doing something like changing a 0.75 to a 0.80. Now I could be wrong, but I don't see it being that difficult and certainly worth the effort to change such a major problem for a champion.
I summon these Red Fists for a response: #IronStylus #Morello #Meddler #Baconhawk