The Best Stud Farm means the highest turnover for the season
The Best Sire is the one that produces the most turnover. In the USA, Into Mischief suddenly jumped to 2nd place on the Earning Log after LAUREL RIVER won the Dubai Cup winning $6,96M, who just could not pass MINESHAFT because SENOR BUSCADOR earned $1,2M in the same race.
The Best Racehorse is the one earning the most money in that season. Another horse could be much better, but because of earnings he/she did not make it.
The Best Mare is the biggest Earner, etc.
It was noted that the Juddmonte sire, EXPERT EYE received 50 Stake winning mares in his first couple of seasons at stud. And that's just the Owners contribution.
If you can manage the same for your Sire, don't bother about any system.
In the Article ‘Value Sires, Part V: First Sophomores in 2022’; dated December 14, 2021, Chris McGrath mentions sire numbers that need no system. The sire will soon show you if he can produce a great progeny or not. These also include: