I voted for Liz, the reason being is because she is there always helping people in all the sections, not just one. She is quick on the name changes, usertitle changes and all that other stuff and needs to be approved.
Dave is also a good staff member. If it wasn't for him, this site would of never been made, but he has wonderful helpers. I think that in some sort of way, every staff member is good, only if they are doing their job correctly.