Better idea; No one loses, losing costs you NOTHING, Absolutely NOTHING! League of Winners, where losing a game doesn't dock LP, you just win win win win, so any grinder who spends 100 hours a week in game will be Challenger based on what? Not skill, not needed to climb, not it's just PLAY PLAY!!!!
... Why don't I get loss prevented when my Dr Pepper is empty and I need to run to the fridge? I was afk for 27 seconds, so I missed CS... i want loss prevented.
My team mate took the lane I wanted, so i had to go to a lane I am not good at, I want Loss Prevented for when I don't perform optimally.
Oh, and make sure that every time the other team has an AFK, they cancel my Win, as the other team got Loss Prevented...
Come to think of it, why don't see see any complaints about not getting a "Win Prevented" added to the game? When people win these 4v5's I don't see them coming to the forums and complaining? Why?