Kills/Deaths/Assists

The whole KDA thing is stupid. People kill-steal or auto-attack someone to take a kill or assist. I suggest that this is somehow changed to damage/damage tanked per death, something similar for crowd control (Blitzcrank) or even healing (Soraka) and buffing allies (Sona). This way the real value of someone's help is shown and people won't be able to complain too. You could even add all of those together in an algorithm even though this might be hard.