To come up with some sort of a system to accurately grade these 25 stars, I've compiled the following:
Every player starts with an A+ rating. The grade drops following each deduction they encounter (A+ to A, A to A-, etc.)
One grade deduction is made for every major stat category (points, rebounds, assists and player efficiency rating, or PER) in which a player has declined from their previous season. For example, Dwyane Wade's scoring dropped from 22.1 points to 20.0 per game, so his grade would go from an A+ to an A.
Since basketball is a team game and these players are expected to lead their respective teams, one deduction is also made for every loss their team has. For example, James Harden is setting career highs in his statistical categories, but Houston is 2-1, moving Harden from a perfect score down to an A.
Also worth noting, star players who haven't played a single game this season (Dirk Nowitzki, Kevin Love, Derrick Rose, etc.) were left off this list since they have no stats with which to formulate a grade.
All statistics and win-loss records accurate as of the conclusion of games on Nov. 6, 2012.