if i was to take the scores off i am sure the loan officers would want them back. That is why i say we dont directly use them.
I would have to opine differently. If the LO's wanted them back then that's a strong indication they "directly" rely on the credit score in their decisions whether they are suppose to or not per policy. Remember, consistently allowing one LO to circumvent your loan policy will in effect change your policy. The examiners will look at your written policy but your consistent pattern and procedures will dictate what your policy actually is.
Your first question I'm not sure what you are asking. If you pulled all 3 bureaus then I would assume you use all information obtained in the credit decision. Which score you choose to report doesn't change that fact.
For the FCRA section you report the name of the CRA you obtained the report from. A reseller is a CRA by definition.
For the AAN section it's not quite as clear. The rules say to disclose the entity that provided the score. I would suggest a conversation with your examiner. FWIW, until I talk to mine next month when they're here I have instructed our people to disclose the CRA that "generated" the score. If TU was the report we used from our reseller TU's information would go in the Reg B AAN credit score section.
If your AA was based on information in the consumer report then you disclose the appropriate information from the report. If the AA is based on something other than information in the consumer report then neither the FCRA AAN or the Reg B AAN credit score section are required.