ROTJ: The best lightsaber fight in the entire sage (yes I'm serious), where Luke's destiny and the fate of the galaxy hang in the balance, where he is on the brink of falling to the dark side, letting Vader have it, taking his arm off...only to look down at his black glove, realize just how close to becoming his father he is, and he turns off the lightsaber, simultaneously beating Vader and the Emperor
Vs.
ROTS: Overchoreographed CGI-fest ending in the dumb high ground exchange. Plus the fight in Palpatine's office where all the Jedi Masters go down like a boxer taking a dive. What a great fight that was.
ROTJ: The best space battle in the sage, with capital ships getting destroyed, dogfights, and fighters racing through the Death Star's superstructure
Vs.
ROTS: Little droids drilling holes in the hull of the Jedi fighters. But the crash was cool I guess?
ROTJ: Heroic actions by Wedge, Lando, Nien Nunb, Ewoks, Ackbar, and a ton of other supporting characters
Vs.
ROTS: Wookiees defending Kashyyyk. I'll give ROTS this one, but we all know this sequence only existed to make sure Chewbacca and Yoda were connected. And Order 66 was more or less well done. But the Utapauans sucked
ROTJ: The end of the hero's journey, passes his greatest test
Vs.
ROTS: The "tragic" fall of this "great hero" who everything great he ever did apparently happened between the movies, so we never saw it except much later in a cartoon series. Plus he turns to the dark side, and instead of becoming the badass monster he was at the end of Rogue One, he kills...some kids and those hapless racist cartoons from the Trade Federation. Menacing!
ROTJ: Fitting sendoff to the characters. Luke has redeemed his father, found his sister, and she's marrying his best friend. Chewie's there! Wedge and Lando survived! Yub Nub!
Vs.
ROTS: Well let's make sure we hurriedly make sure all the characters are in the place they need to be 19 years from now