Depends on what you define as weaponry. The Mig had better firepower with its cannon, but many other factors come into the equation. The Americans had better training (many were ex WWII), aggressiveness and experience. The 86 gun sight was regarded as giving a great advantage as well. The all flying tail on the later 86 gave an advantage in maneuverability, and the Mig was not a very good gun platform. The main weapon I would say was the professionalism of the people, the equipment and training.