It is not fair to compare older horses with AP, e.g. Cigar, John Henry and Forego, but my amateur opinion is that after Secretariat (too many track and world records to mention) you have to put AP in the short list of greatest 3 year olds ever. Reminds me greatly of Seattle Slew, maybe not just blinding speed, but superior speed that he could carry forever, and just like Slew, once AP got the lead, was damn near impossible to track down in the stretch. Probably put Point Given and Spectacular Bid in the discussion as well. Bid still holds the world record in the 1 1/4 if I recall, set 35 years ago. But since they don't run many top 1 1/4 races at Keeneland, I bet AP's track record stands a long time as well.