Yeah, I've just started to ban her, for some reason her playrate at lower elo suddenly jumped up. Can't stand to face her, and so tired of playing her after like 10 games. Takes so little skill to win early game, but she does shit in teamfights if the enemy team knows how to just disengage after you pop your ult, then reengage when your ult is over, so you as Illaoi can't do much the whole teamfight.
I've taken a liking to Wu though, if you win lane you will pretty much one shot carries as full AD, and if you lose you just build a tank item or two and win teamfights with your ult. Not sure why he isn't played more to be honest.