I really will never understand how so many people hate Mei. Anyways... I hate Symmetra. I could rant for eons how ridiculously powerful she is when she's pocketed by teammates, and even on her own, especially on console where it'd be much harder to hit a fast moving target that's bunny hopping around you. It just disgusts me every time I see that low skill character being used. She doesn't even have a high skill cap, either. You put your turrets in a despicable spot, and you get behind your team and then push when someone gets too close. Too easy.