Takes

Secretariat was likely racing on anabolic steroids

I think a pretty strong possibility that Secretariat was racing on anabolic steroids. But here's the deal. So were the other horses he was running against. It doesn't really taint his legacy in any way to me because he was an incredibly dominant race horse at a time when pretty much all the horses were running on that stuff.

Flightline was a better horse than American Pharoah

Secretariat was the best... The four best horses that I've seen... were Secretariat, Flightline, Spectacular Bid, and American Pharoah... I would put 'em in that order. And I know some people think it's heresy to say that Flightline was better than American Pharoah... but I just think that Flightline was better.