No. 6: Change the point system for wins, losses and draws so that a win is 1 point, a loss is 0 points, and a draw is -1 point.
Hell. No.
It used to be 2 for a win, 1 for a draw, 0 for a loss (same as your suggestion, just with a shifted x-axis), but that encouraged teams to settle for ties too often. They changed it to 3-1-0 to provide teams with an incentive to try to win games rather than not lose them, and it's worked.