Aristotle's three means of persuasion--logic, emotion, character
That's an age-old question still very much unanswered. I once wrote a paper in graduate school arguing that ethos (character) is the strongest, but studies (especially quantitative ones) might rebut that. Ask yourself what is most likely to sway you: an appeal to your mind, an appeal to your heart, or your trust in the one making the appeal?
it depends on the reader
Logos, Pathos, Ethos was the priority they took in my history - but they are absolutely interdependent - they are an expression of universal energy - they are partly arbitrary division of the energies that determine the arc of our lives through the world - described from the perspective of a reasoning subject that is himself one such "flying object"
Love, Love, Love