Hardcore Legend said:
Are you lumping ROTJ int the PT? Because otherwise, your view of the character does not fit.
ROTJ is different because it’s Luke’s story, not Anakin’s.
Even if Vader is a monster, we can feel happy for Luke. If he thinks there is a little good left in his father and he can bring it out, then OK Luke we’re rooting for you. But we’re not happy for Anakin at the end of the movie–we’re happy for Luke.