I personally would say that the droid assembly line sequence in AOTC is the worst sequence ever to appear on screen in a Star Wars film. It’s long, bland, inconsequential, and ultimately completely forgettable. Do you agree? What would you say is the worst? The Ewok movies don’t count, the Clone Wars animated movie or TV shows don’t count, the Holiday Special doesn’t count, and Rebels doesn’t count. We’re only counting the live action films: episodes I-VIII and R1.
Funny, to me that’s one of the best sequences in the prequels. Memorable, and one of the few scenes in which I felt something. Anything.
To chose just one worst is impossible for me. I’ll try one for each movie.
TPM - the podrace
AOTC - hard to chose, maybe the fireplace scene between Anakin and Padme?
ROTS - almost all of them?
SW - absolutely nothing
ESB - absolutely nothing
ROTJ - the song number, Lapti Nek or Jedi Rocks, both suck IMHO
TFA - I hated the whole “Death Star 3.0, now even bigger!” subplot
R1 - bumping into the Mos Eisley cantina aliens, and the whole tentacle monster subplot
TLJ - Way too many scenes to chose from, but the biggest insult was the casino planet subplot. Way too long and absolutely pointless to the overall story, and too political