What Seekingblue said. I would recommend looking at their core values and the topics already mentioned here. Don't try to build a generic answer. Instead, I would recommend building your responses to those topics based on your experiences. If no experience in a particular area, then think about how you would handle a situation where two FAs we're arguing (just an example) and be ready to respond with "I haven't had to deal with that situation, but here is how I would handle it".
Bottom line: they want to know who you are and if you will fit in at JetBlue. Canned and impersonal responses will only hurt you. At least that was my feeling during the interview. Good luck!