Gwok Jing spent a great amount of his adult life as the commander of vast military forces. In his twenties, he was an important flag-ranking officer in Genghis Khan's Mongolian army, leading sieges against the Jin Empire and its Mohammadean allies. Later in life, he led Seung Yeung Fortress' resistance against Kublai and Mongke Khan's Mongol invasion forces, holding them off for decades.
Kiu Fung was the leader of the Beggar's Union, a veritable army of 300,000 beggars spread across Sung China. Later, the Khitan king gave Kiu Fung an important position in the Khitan army, even planning on having Kiu Fung lead the Khitan invasion of Sung.
If the two great heroes were to meet in battle with equal military forces, who would prevail?