I am proposing a balance criterion (for dps and supports) that I think is better than the pickrate/winrate that everyone loves (and for good reason - it has served us well).
Criterion:
A hero is UNDERTUNED if you cannot one trick the hero to 4.4k SR
A hero is OVERTUNED if its current state is gatekeeping other heroes from 4.4k SR
A hero NEEDS REWORKS if it must be in one of the above states to prevent the game feeling really unfair.
Justification - Alternative is bad
I, along with others, have posited that winrate weighted pickrate is a poor criterion for balancing because some heroes are more popular, and people who play them have prior experience. If a professional “Starcraft 2” player told you that learning “Age of empires” is easy you would rightfully be somewhat indignant.
Justification - Criterion is good
This criterion is good firstly because it gives serious players who want to climb a sense of personal responsiblity: if someone can climb to the highest level (the highest lobbies in overwatch, if you didn’t know, are 4.4k avg), you can too. You just need to “get gud”. Also, if nobody could do that, then why should you be expected to?
Secondly, this criterion is good because it implies that if you can one trick a hero to 4.4k, you can play any hero pool you want to 4.4k. So if you can one trick three heroes to 4.4k, you can definitly play those three heroes as a flex player to 4.4k (most likely higher).
For tanks, I think you can use the same criterion except held to the standard of 4.6k, because of the greater importance and smaller number of heroes. Go ahead and flame me in the replies.