There are several things that have to be qualified before answering your poll.
1) I don't trust or "assume" any
priests are going to be worth listening to. They are so far off track they are a stewpot of confusion, and would be a nightmare for any new Christian to try and glean truth from error.
2) I don't think we are supposed to 'put our trust' completely in any teachers.
We have to study the scriptures and determine whether the teachers we listen to are interpreting the scriptures correctly.
We can tell when someone is not interpreting correctly when we have learned the correct interpretations. This takes time and study.
I suppose if you are just starting on this journey you have to trust or assume that your pastor or teachers are interpreting scripture correctly but it is up to you to look it up and verify.
3) If they have been to Bible College it does not mean they are gifted or called to preach but it does help you "assume" that they will be sound doctrinally. (That is if they went to a bible college that has a good reputation for teaching sound doctrine and producing good preachers) You are probably going to "trust" or assume that they are not a complete bufoon.
4) If they are ordained or licensed to preach by an organization that you respect then that is going to give you a level of trust, or make you assume that they are not a false teacher or the organization would have pulled their credentials.
You can reference several commentaries when verifying an interpretation. You might agree with three and not with the forth. The ones that seem to do the best job of hermeneutics (interpreting using common sense rules like context, other scriptures on the topic etc..) these will help you identify which interpretation is correct and why.
5) And finally, I will not trust or listen to any teacher who says they do not read any other men, or listen to any other men but the bible.
They are the worst teachers you will ever encounter.
Especially if they say they do not read commentaries because they are "just the thoughts of men."
It has been my experience that these people are going to be wrong about many of their interpretations.
They are usually the worst teachers, making many mistakes but being too ignorant of their ignorance and blaming the Holy Spirit for their bufoonery. It is an embarrassing display of a public meltdown and you feel so bad for them you don't even want to point out their errors. You hope that they will start referencing commentaries before they preach so they can at least catch the most obvious errors.
But this attitude about commentaries comes from two reasons 1) immaturity and ignorance has them thinking that it is 'more likely the Holy Spirit' to get an understanding without reading that someone else had that understanding before they did. They like to think that they discovered it themselves and were not "tainted" and therefore they can trust it to be correct.
2) they have read a commentary by scholars of the textual criticism camp who seem to discredit the text as though it were merely the works of ancient human fallible authors and not divinely inspired and this shocking experience caused them to think that this is what commentaries are about. I don't think any one should waste their time with those kinds of commentaries. Only scholars who are believers in the inspired word of God are worth reading and they do help us shorten our learning curve because they point out things that we might not see until our 700th reading of the bible.
So in conclusion, compare teachers interpretations with commentaries and this will help you if you are just starting out on the journey. Trust the Holy Spirit. "Grant ministers the benefit of the doubt" is not the same at "trusting". We trust only Jesus.