I'd probably be alright with moderating. I'm pretty tolerant of people here, and I accept other people's opinions. I think there's only been one time in my 1 and a half year stay that I've lost my temper with someone.
I'm also rather fair with people, since I've been taught to be fair with others. I don't think I'd pick favorites with people, nor would I be stricter to people I dislike.
I'd probably take the role rather seriously as well.