"I lost to X champ; Rito pls nerf!"

Did I miss any?
Seriously, though, people need less QQ and more Pew-Pew about this. Try playing the champ to learn its weaknesses. Build items or pick champions that counter them in some way. And especially for you Bronze/Silver players, learn what defensive items are. I can't tell you how many teams I see go full damage and expect not to get rekt by assassins, burst mages, and built adcs.
I've seen a metric f---ton of whine about these champs lately, and the only call for a nerf that seems remotely sensible at all is to do something about Ahri's movespeed on her Q, and that's just because there's so little counterplay to it, but even then I can live with her as is because most players can't play her properly, so it's usually a free lane if you play against her properly. On top of that, I would be okay with a compensation buff somewhere else in her kit if they did remove it, because it means introducing risk into her play, so some level of reward is perfectly reasonable.
/minirant