You play what RIOT wants you to play and anything else is shit
Meta champions have a full kit, they can do everything better and easier then non meta picks, they have more damage, survivability, and require least ammount of skill. High elo meta whores dont play this champions because they are fun they do sobecause they are strong and they want to win at all costs but even they have spoken out about how shit some champions are that its almost a certain lost if you pick them.
player I can ASSURE you that meta picks do not require "the least amount of skill", though it is bullshit that new champs have a tool for everything just so the player can always FEEL skillful.