It'd probably be futile to compare how much the two most prodigious alcohol drinkers of the Jin Yong and Gu Long universes could drink, so let's do something different.
We all know that Kiu Fung and Lee Chum Foon really, really liked their alcohol, and could consume vast amounts of it. Neither warrior, however, was ever deprived of alcohol for too long in his respective novel.
If the two of them were to have a contest to see who could abstain from drinking longer, who would break and give in first?