For instance in AA you take your 6 district champs, then your 6 runner ups. That give you 4 wild cards either take two from the north ad two from the south or the highest rated 4 regardless of location.
With the power points teams can pad their schedule and play bad AAA teams and get 3 points just for playing then another 12 for a win. While if two strong AA teams meet up the most points the winner can get is 12 while the loser gets none.