Alright, here's my attempt at "scoring" this:
Its gotta be user voted. You send out a sitemail and post here in the forums. In the sitemail you have each user make a list of their Top 10 coaches.
Now, no crazy forumla. 10pts - 1st, 9pts - 2nd, 8pts - 3rd, etc. . . .
The crazy formula comes in the tabulation. First, who is voting matters. Regular points alotted for all coaches (10, 9, 8, 7, etc...). If you coached more than 2000 HD games your points are doubled. If you coached more than 4000 HD games your points are tripled and so on. . . .
***Minimum of 200 games played (no stuffing the ballot box with a bunch of fake ID's). ***
Example. Vandydave has over 8000 games played. His votes would be worth 5x. Whoever he voted for in 1st place would get 50pts, 2nd - 45, 3rd - 40, etc. . . .
Reason: The more games you've played, the more coaches you've run into. And your opinion is that much more valuable. A recreational HDer that has 1000 games under his belt isnt going to know as may coaches as VD.
Also no combining user IDs for voting purposes. Will cause too much confusion. If you want to count both your ID's vote with both of them. But you cannot use comined wins
Last 'adjustment' would be to double the points of any user that has not been in the game for over a year. Triple for a coach that has been away for over thee years.
Example. Plumpy would not get a huge amount of votes Because probably half the users dont even know who he is. But the simple fact that he would get votes 3 years later means something and should be adjusted for. So say his grand total came to 430 pts. Tripled he would be at 1290.