In the past it’s been Northern Dancer, Danzig, Mr. Prospector, Storm Cat. . .all were marquee names at the select sales, and when a top stakes mare retired it seemed a sure bet that one of these horses would be at least considered as a prospective mate (unless the mare was a daughter/granddaughter of, or closely related to). For example, I was sure when Darley purchased Ashado that she’d be going to Storm Cat (and I was right).
Just for fun, who might be the next in line to assume the mantle? Or are these days over with?