Not everybody in wulin is Kiu Fung. In other words, not every powerful martial artist in wulin was marked for greatness from an early age. Some of the individuals who became extremely powerful in the martial arts started off very unremarkably...even poorly.
Four unlikely candidates became very powerful martial artists despite not showing much early promise: Deun Yu, Hui Juk, and Yau Tan Tze of DGSD, and Gwok Jing of LOCH. Of the four, whose ultimate development into a powerful martial artist surprised and impressed you the most?