Set up a Dally M commitee consisting of 10 ex-players, journos or commentators. Their job is to go into NRL headquarters each Wednesday (and get paid for it), view the games on tape (yes, there are things you can pick up by being at the game, but you can't tell me watching the game closely on tape isn't enough to determine the game's top 3), give them copies of the stats and let them pick a 3, 2, 1. Add the totals from the 10 committee members and come up with a final 3, 2 and 1.
A Dally M committee might sound grandiose at first, but if we want the game to move forward, if we want to have a highest individual award with some credibility, I think this is a much better way of going about it.