I’ve never understood the argument over which trilogy is better. The prequels and sequels are so different that it seems like comparing an apple to an airplane.
The OT: A timeless classic, beloved by multiple generations. There are a few plot holes, but they are outweighed by the amazing emotional moments.
The prequels: Controversial when they came out, hated a few years later, loved by the people who grew up with them. They expand the universe in many ways, but the dialogue leaves much to be desired.
The sequels: Very controversial, the subject of much fiery debate. They are very professionally made and entertaining to watch, but they fail to expand the universe, they undo the accomplishments of the OT heroes only to redo them with Rey, and they have many plot holes and leaps of logic.
The prequels and sequels are good and bad in their own ways, but in my opinion the prequels are better than the sequels.