Why x2?

I would also prefer counting 1 point for a win and 1/2 for a tie in PL. Other formats for showing the score could be:

- Leaving wins, ties and losses separated, like "840-0-1".

- Or using Copeland score, which is (wins - losses), 840 wins and 1 loss would be "839". The difference is, missing pairings would be more easily counted as ties instead of losses.

As for APW, after reading a lot about voting/ranking systems, I realized PL is superior to APW in the fairness subject. If there would be a new ranking system, it would vote for a Schulze based one.