Opinion Question: Who was the better Sire Seattle Slew Or Alydar?

[Port Conway Lane]

The question appears to be a no-brainer but after looking at the top race horses each sired if you took away one horse it becomes very close. As a sire of top of the line race horses I would give a slight edge to Alydar.

Who was the better sire, Bold Ruler or Native Dancer ? Which sire has had a bigger impact on the breed ? Bold Ruler is one son away from having little lasting impact and Native Dancer is a son and a daughter away from being a dismal failure.

Back to the original post if I was to add Gone West into the equation which of the three would be considered the better sire ?