If the worst you have to complain about is Orianna
Then thats a pretty damn good sign that midlane might actually be fairly balanced. If the absolute WORST issue is a 50% win rate, 13% pick rate champion, then maybe you should just stop complaining and be happy that there Riot balanced your lane. It absolutely hilarious seeing all these threads complaining 'how OP Orianna is'. Maybe be thankful your lane is in a pretty good spot instead of finding literally any reason to complain that you can
