Wow, thread really grew while I was out for the evening.
I should mention that I'm biased towards A) members who've been around for a long time and B) members who are older than 25. Reasons being that if you ask, "who's that" I've picked the wrong guy to interview, and not many of us under-25s really have had too much time to lead interesting lives.
I've updated the first post in this thread with the names of the people I hope to pose questions to in the very near future. As someone said, this is not a popularity contest - it's just one person's personal picks for people who are probably really interesting but at the same time are generally mum on the details of the lives they lead on the forum.