I’d argue you should watch A New Hope because it was groundbreaking at the time, Empire Strikes Back because it’s amazing by any standard, and Return of the Jedi only if you crave resolution. Then watch Rogue One because it’s borderline better than Empire Strikes Back.
There’s only 2 good Star Wars movies that are good by the standards of modern cinema.
The person who ceaselessly bashes their head against a brick wall hoping to knock it down will accomplish one thing, and it’s not knocking the wall down