There are so many, but one that is glaring to me: Padmé. How much contempt must Lucas have for his own character?
Padmé changes completely based upon whatever whim Lucas has at the moment: in the first film she's a 14 year old Queen. That makes sense, that sort of thing happens in a constitutional monarchy.
Then, in the second film because Lucas changed focus on how Palpatine was to come to power, we learn that she was the democratically elected Queen, with a finite term. This means that the population of Naboo elected a teenager to be responsible for the governance of their planet — because that makes so much sense.
And then, in the last film, this supposedly “strong” female character dies of a broken heart. This is one outdated and disgusting trope. News flash: Anakin Skywalker is not the only schmuck around, and plenty of women work through that. As someone who was raised by a single mother who ran her own business during the 80s, this was something that actively offended me.
Can anybody imagine Leia Organa “dying of a broken heart?” Seriously?