I think I may be confused a bit by the question. Are you asking if AS passengers board after DL emp/parents/pass travellers on DL aircraft? That would always be the case. AS guest (buddy) pass travellers cannot fly on DL metal so that would not apply. AS guest pass travellers must fly on AS/QX metal only.

If you let me know if you are looking for boarding priority for AS, I can help with that. Looks like we already have an answer for the DL part.