Jin Yong and Gu Long were both famous martial arts novels in China. Their novels were regarded as classics in the history of martial arts novels. Due to differences in personal preferences and literary styles, I can't simply answer which two books are the best, but I can recommend some good books that are worth reading. Jin Yong's The Legend of the Condor Heroes and The Return of the Condor Heroes were regarded as the classics of martial arts novels. The stories of Guo Jing, Huang Rong, Yang Guo, Xiao Longnu and other heroes showed the unique charm of Chinese martial arts novels. The plot in the novel is complicated, the characters are vivid, the language is beautiful, and it has a deep understanding of Chinese classical culture. Gu Long's Legend of Lu Xiaofeng and Legend of Chu Liuxiang were regarded as masterpieces of Chinese martial arts novels. The stories of legendary characters such as Lu Xiaofeng and Chu Liuxiang were full of humorous elements, rich imagination and creativity. The story in the novel was rich and colorful, the characters were distinct, the language was concise and bright, and it had a strong artistic appeal. Jin Yong's and Gu Long's novels were both classics worth reading. You can choose one or two books that suit you according to your preferences and interests.