In my opinion, the best producer females of the future can come only from the bloodlines, where is the mother side is perfect, with excellent looks and wesen. Take a look for example the story of Gino Gomez.
At first was the BDSGin Alfa del Citone, after Haina ( I dont know about hos she was looks, but I think she was beauty too ), after Tequila, after Arielle, and Gino.
Or Kalina - she was coming from Alida, she was from Alexa.
Females without " strong " pedigree without excellent mother side can come too, but this is only luck, serious breeder can not calculate with the luck !