Who here (excluding Administrators and Cid's Knights) do you think has the least chance of being banned? No offense Administrators and Cid's Knights but it's just that it's impossible for you to be in trouble in this forum since you run this forum so you don't really count as busted members.
Some things to consider about your choice:
Have they ever made a thread that was closed?
Have they ever angered another member here?
Has an Administrator or Cid's Knight threaten to ban the person?
Have they ever spammed?
[Edit] You also can't list Site Staff and Former Staff since they can't get banned either.