I posted this on some 'Medical Coders Talk' group, but it's worth saying here:
Here is one important thing to remember. When you are in an interview with someone who has and/or prefers AHIMA credentials, don't talk about any other credentials.
The reverse is also true. If the person interviewing you has AAPC credentials, let them lead the conversation. There are people who have very strong, negative opinions of one organization or the other.
You usually won't know about their strong feelings until you open your mouth and say something that offends them, so let them do the talking about credentials. In fact, ask them for their recommendations. Get their opinions. You may learn something. Just don't promote your credentials with a heavy hand until you know more about the person who is interviewing you for the job.