Considering this:

1. Appearances (the number of appearances in books and mentions of the characters that are in this list)

2. Physiology (what you consider logical).

3. Personality (things that you always remember about thus characters).

I think i would give credit to bowers

Hard to choose but i have to go with bowers

I was really scared of Kiefer Sutherland when he played Ace

Me too, guy!

Bowers