If we took a poll of every thread that's been made about "OP Champions"
With the Elo of the original poster at the time that the thread was made you will find that the majority of the complaint threads are made by bronze or silver players. A small minority will be made by plat+ players, and plat isnt even good.
What you people need to understand is that Riot does not balance around low elo, nor should they. They balance around LCS and high level play as it should be. Just because you have not learned how to play the game very well, and need to complain about something every 2 weeks does not justify a nerf or a buff to something.
For example. Yasuo has many counters. Just because you cannot play the counters properly does not mean they do not counter Yasuo. You cant just pick fizz into anivia because he "counters" her. You have to learn how to actually play fizz. Then you will faceroll the anivia.