Hi Calm, thanks for the feedback and the question. My suggestion about asking God about who His prophets are was made in the context of saying that I think that route is much more effective than trying to form an opinion of someone based on historical documents, but I don’t think, in the context of good, better, best, that it’s the best practice.
Frankly, since the role of a prophet is to share what God has instructed be shared, I don’t spend much time evaluating the prophet/messenger, all of my time is spent on the message. If I receive confirmation the message is of God, I try to act according to the promptings I receive regarding how, in my circumstances, I can best implement the teaching. Without that confirmation I put the message aside.
And since all prophets are fallible, an answer from God that Moses or Joseph or President Nelson is a prophet is helpful, but not as actionable as confirmation that a specific prophetic teaching/call to action is of God.