I've sprained my index finger, burned my hands once (mainly the thumb part), and the pinky is quite important, so no to these three. Between the middle and the ring, I can't really decide. I've broken one of my ring fingers, so probably my middle one because it hasn't suffered as much as the rest (except pinky.)
It would really depend on my mood that day.
You know,
If whoever is cutting my finger asked me for my choice before he cut it.