I don't want LoL to be a team game.
If I lose, I don't lose because I played bad, I lose because one of my team mates played very poorly. If I win, I don't win because I was good, I win because someone on the enemy team was bad. If I'm 15/0 and I have a 1/13 team mate, I'm still going to lose. I don't want that. I want the outcome of the game to be decided by how good I am, not by how bad someone else plays.