For all those who had their interviews:
I have made a personal observation, although might be wrong. So please, share your experiences to prove/disprove my point.
The female interviewers are more intrusive and stick closely to interview protocol - they ask more detailed questions, take detailed notes, and stick to the formal interview more THAN the male interviewers. Male interviewers get overall impression and can easily get away with generic questions, and ask their own questions more - they are really trying to get to know the person rather than to stick to the protocol.
I had an interview with a female student last year, and a male student this year. The experiences were strikingly different....