Originally posted by quanchi112
There was good in him and he chose to kill the emperors over his son. He came back to the light.Kylo wasn't delusional like Vader who was in denial. Ben admitted it was wrong but that didn't stop him from killing that worthless bastard, Han Solo. Kylo isn't a traitor like Vader turned out to be in the end.
vader wasnt in denial. everyone thought that it was impossible to turn back from the dark side, from yoda to palapatine. it wasn't until RotJ that vader made that apparent.
also, vader had selfish motives for keeping luke alive. vader planned on making luke his sith apprentice and betraying the emperor. he said so.