What is the primary factor overwhelmingly is he who hits first wins. This is really such a no-brainer that I am astounded that people dispute it.
I dont think anyone is disputing that hitting first is the best thing. Some just want to get out of the way as they do it.
"If the rule you followed brought you to this,
of what use was the rule?"
“The enemy is anybody who's going to get you killed, no matter which side he is on.” - Joseph Heller