Once a residency program selects a group of applicants for interviews, grades, board scores, etc become much less important. The interview is there for programs and applicants to get a feel of one anothers personalities and how each will be able to fit with the other.

So, an applicant who is an ass and has 250+, AOA, etc, etc will be be tagged as an ass and (hopefully) not ranked highly. On the other hand, an applicant who gets along well with everyone, is enthusiastic, works hard, etc, etc but has 220, non-AOA would (hopefully) be ranked higher.

That being said, two applicants totally equal from a non-stat/personality standpoint will still be judged with their stats in mind and the greatest personality in the world won't fix a terrible board score, grade, or LOR.