Comparison of the strength of the fourth-generation fighters of China, the United States and Russia, who is the strongest? (J20/F22/Su-57/F35) Comparison of the strength of the fourth-generation fighters of China, the United States and Russia, who is the strongest? (J20/F22/Su-57/F35) Comparison of the strength of the fourth-generation fighters of China, the United States and Russia, who is the strongest? (J20/F22/Su-57/F35) Comparison of the strength of the fourth-generation fighters of China, the United States and Russia, who is the strongest? (J20/F22/Su-57/F35) Comparison of the strength of the fourth-generation fighters of China, the United States and Russia, who is the strongest? (J20/F22/Su-57/F35) Comparison of the strength of the fourth-generation fighters of China, the United States and Russia, who is the strongest? (J20/F22/Su-57/F35) Comparison of the strength of the fourth-generation fighters of China, the United States and Russia, who is the strongest? (J20/F22/Su-57/F35) Comparison of the strength of the fourth-generation fighters of China, the United States and Russia, who is the strongest? (J20/F22/Su-57/F35)