Jack is wonderful, and I have such a soft spot for Jack/Anne (and Jack & Anne & Max, in all their combinations). I will say that Vane...I'm not sure if it's genuinely a case of the better parts of his personality slowly coming to light or more of a hostage situation where you just spend so much time with his character that he eventually becomes more tolerable, but I liked him much better at the end of his story than I did at the beginning.

I love Dufresne, too! Especially in season 1, where he has the most developed arc, I think (the bit where he finally has to fight and prove himself in battle is SUCH a memorable moment).