In overall direction, I think it is obvious that the Talkboard has more influence. The Talkboard determines new forums, deletion of forums and organization of the forums. If used properly, that is tremendous influence.
On the other hands, the moderators handle the day-to-day actions that make the experience enjoyable. Sometimes, it is like herding cats. Can a moderator have influence in a specific forum? Most definitely.
So, I guess I feel that both groups have influence in different ways.
William