Performance Based Ranked System
It's 2016; there is no reason to have a lazy ranked system that relies solely on Win or Loss in a 5v5 game.
THe worst thing about ranked is not losing because you got stomped in lane, it's knowing that if you go 5/0 in lane but your bot lane went 0/10 in 10 minutes and lost tower in 6, you lose the same LP as them.
I'm not saying K/D should mean much in ranked, its not CoD, but objectives, gold earned, and damage dealt (AKA your GRADE after each game) NEEDS TO COUNT FOR SOMETHING.
Someone who gets an S- on the losing team should absolutely not be losing the same amount of LP as the jungler who went 0/11. It's just a terrible ranked environment.