I also argue the world building alone makes them worth it. While the dialogue and plot had some issues, all the new worlds/aliens/the actual sith/etc. heralded in a new age for star wars.

The world in the sequel trilogy is so small in comparison to either of the other trilogys.

The dance fighting where they’re not even trying to score a hit on each other.

Revenge of the Sith has the best and most gratuitous action in the entire mainline series.