Don’t overlook Zenyatta. Probably the best filly ever. She recently foaled too.
I'm not, and probably true. When Zenyata takes out Secretariat's record at 1-5/8 miles on dirt while still taking short races like the Preakness, I'll gladly change my mind. Frankly, I don't think we ever saw what Secretariat could have done under truly competitive forces. That horse had more than even he knew.