Meanwhile, Hux's fall from grace across the trilogy is an epic tragedy.
In TFA, he is a zealous, jack-booted space Nazi who is Kylo Ren's equal in every way. His spittle-flecked speech as the New Republic government is destroyed is deliciously evil.
In TLJ, he is immediately reduced to being the unwitting comic relief. First, Poe Dameron makes fun of him over the phone, then Snoke humiliates him by remotely Force-dragging him around the floor in front of everyone on the bridge. He briefly redeems himself after informing Snoke of his clever "tracking the Rebels through hyperspace" thing, but then Snoke dies and Ren takes over, and Hux is no longer Ren's equal. We last see him relaying Ren's orders and making quips like "I think you got him".
In RoS, he has truly sunk to the depths, selling out the First Order to the rebels in a bitter attempt to get back at Kylo Ren out of jealousy. No-nonsense General Pryde sees right through this pathetic shell of a man and has him executed on the spot.