In my opinion, the standing barbell overhead press (also known as the military press) is the ultimate exercise if your goal is to be a lean warrior.
It’s arguably the most difficult exercise you can do. You don’t see that many people performing it these days because it’s hard. It’s much easier to pick up the dumbbells and press.
While I am a fan of dumbbell pressing, nothing compares to the barbell while standing. It puts your entire body to the test. Much of your muscle imbalances and weaknesses will be exposed