 The Soviet Su-27 Flanker and Mig-29 Fulcrum. The US F-16 Falcon, F-14 Tomcat, F/A-18 Hornet, and F-15 Eagle. These are unquestionably the most lethal fighting machines in the sky today. See how differences in missions, design philosophies, and technological capabilities alter the characteristics of each aircraft. Why the F-18 is probably the most agile fighter. Why the Su-27 has excellent maneuvering capability.