Big Entry Level FP&A Interview

I am currently a senior about to graduate. I have a finance degree and landed an interview with a F500 company as a financial analyst in their FP&A team. First round was a phone interview, second was a super day, and the final round is upcoming with another super day. So far, I have been able to feel it out pretty well with the interviews mostly being conversational. The technical questions have been few and far between, with most of them being sneakily fitted into conversation. At this point I have passed the check for competence, and am one of the final few candidates. Going beyond proving that they will be able to work with me day in and day out, what are some key things to stress in these interviews in order to really stand out and separate myself from the competition? Basically how should I brand myself to go beyond just a qualified candidate and become a desired candidate? Thanks in advance.