Haha.
7 people that I personally know interviewed at Hawaiian last year. 5 got told no thanks.
While it's true that pilots have a lot of options and it is a very favorable market for us currently- interviewing at a legacy airline is not something you walk into thiking you deserve it.
I interviewed in May of last year and I did my absolute best to prepare. You do not need to hire a consulting company for Hawaiian interview. It's nothing technical. But you do need to sit down and think about very carefully (I mean really carefully) on what you are going to say.
The gouge on aviation interview is accurate, but do not simply regurgitate what's on there. The management panel interview is the most imporant part. Tell them why Hawaiian is best for you.
The guys commenting above are mostly just joking - but please do not wear / comment / joke on anything political on the interview (obviously).
Show them that you are a genuinely a good person and someone that is a pleasure to work with in the cockpit.
If you are chosen for the interview, Hawaiian is interested in hiring you. That's why they are flying you out to Hawaii and getting you a hotel in Waikiki.
Most important advice I can give you is to be humble. Trust me - they will sniff out arrogance & entitlement in the first 10 mins of the interview and I believe that has a significant impact on Hawaiian interview decisions. I see some people walking into interviews thinking they deserve it. This good market and multiple major airline interview calls are getting to their heads. But honestly... odds are - those of us hired last year and those of you who will be hired this year.... we are just lucky with timing. We severely lack airmanship and experience compared to new hires just 5 years ago. We should be thankful for the opportunity and be willing to learn from our more experience pilots. It's a fantastic pilot group.
Good luck!