Of the various martial arts that emphasize raw, destructive power, Hong Lung 18 Palms and the Hung Dung Sect's 7 Seung Fists probably leave the greatest impression.
Unfortunately, in none of Jin Yong's novels does a Hong Lung 18 Palms-user fight a 7 Seung Fists user.
If there were two combatants who had the exact same inner power levels (Greats-level), one adept at Hong Lung 18 Palms and the other, equally adept at 7Seung Fists, which one would be capable of doing greater damage to the opponent/target? Which of hte two skills delivers more kinetic power upon impact?