Redemption Arcs

One thing I think the show did really well was showing all sides of the stories. Even with people like the primes, who were brainwashing innocent people and ending lives for their own immortality, they showed their perspective. I think the best examples would be Bellamy and Murphy, they were on opposite sides and both were extremely selfish in the beginning of the show, but they both were fleshed out as characters so well that the selfish things they did were almost excusable by the end. Who do you think had the best redemption arc?