I was at AOW and had a blast. With my limited experience so far, I think the numbers suffered at AOW for one reason alone. That being it was on a long weekend. I think the turn out would had been double if it was held on a normal weekend. Too many family commitments to keep on long weekends. I heard it from the boss for going, but I did not want to miss it. That said, I don't think I will be missing a summer long weekend with the family for a while now.
Score keeping at the end is fine so long as command know ahead of time what each objective is worth. That way they can decide if it is worth the resources to go after a certain objective.