my opinion hands down bobby frankel. frankel was able to do it every which way from cheap claimers to million dollar yearlings. when the game changed with van berg and later lucas operating stables all over the country frankel was able to adapt to perfection. originally building an old school stable of claimers on the so ca circut some of which were able to become stakes winners which at the time was unheard of. now he is able to choose a barn full of royally bred stock with owners waiting in line to fill up the barns.