Assuming the situation could possibly be different from the show (depending on how the individual in charge wanted to carry things out), in whose place would you most want to be in?
(You have as much knowledge of these situations as the individuals did when they first entered them. You can learn, of course, as your situation progresses.)
A) Picard's, from "Allegiance"
B) Picard's, from "The Inner Light"
C) Picard's, from "Chain of Command"
D) Worf's, "Ethics"
E) Deanna Troi's, "Skin of Evil"
F) Galileo Seven crew's, "The Galileo Seven"