Curlin's Legacy

I have a hard time putting him as one of the best all time, first off because i dont go that far back, and second off i dont think he was even 1-2 in his crop. Retirements kill this sport, Hard Spun, Street Sense and Rags to Riches were all monsters, none of them returned to the track this year. Of the recent horses that i can compare him to, i dont think he was any better then Street Cry,Point Given, Bernardini even Invasor seemed to do it more powerfully then Curlin, Ghostzapper, Roses in May, i dont know, maybe im wrong, but i cant see how Curlin can be a All Time great when one could argue that he's not even top 10 in the last 10 years.