Okay but consider this. Empress Amidala and how evil and gorgeous her outfits as Empress would be. I think we as a fandom has failed Padme for not considering how she could look as Empress

Dark Skywalker AU

I have come up with a Dark Skywalker au and Darth names for if Padme, Luke, Leia,  Kylo(were he to truly become Sith) and Rey have fallen to the dark side with Anakin.

For Padme. Simply this. Padme has inherited the mantle of Darth Traya. She found out Palpatine is indeed the Sith Lord and was behind Naboo and the Clone Wars. She feels betrayed and chooses the dark side to seek revenge. The nature of betrayal causes her to betray the Jedi(they never see it coming and when it does come it hurts harder than Order 66, Sith!Padme is the Jedi’s worst nightmare) and to seduce the chosen one in love and to the dark side and uses Darth Vader to destroy Darth Sidious so they can make the galaxy how they want it to be. "There must always be a Darth Traya, one that holds the knowledge of betrayal. Who has been betrayed in their heart, and will betray in turn." And Padme would become Empress Amidala with Darth Vader by her side.

For Luke. Darth Zhoun. “Zoon” means “Son” in Dutch, just as “Vater” means “Father” in Dutch, with “Darth Vader” translating to “Dark Father,” thus “Darth Zhoun” would mean “Dark Son,” a fitting title for a Dark Luke. For story purposes, Luke lets the anger of Ben and Yoda’s lies get to him and after he constructs his new lightsaber, he seeks his father out. Vader begins his training. And Luke is darker in meeting with Jabba The Hut. Luke is under orders to kill Jabba to test his powers out. Luke fully unleashes his raw powers upon Jabba’s palace. “I did warn you didn’t I? Not to underestimate my powers? You should have bargained, Jabba” he says before decapitating Jabba. Darth Zhoun returns to his father ready to face the Emperor and rule the galaxy as father and son. Together they fulfill their destiny, destroy the Emperor and rule the Galaxy as father and son. Anyone Imperial who dares defy Vader’s rule as Emperor is instantly killed by Darth Zhoun. Leia becomes a Jedi to stop her dark father and bring her brother back or do what she must.

As for Leia. I think. Darth Alia (feminine form of another in Latin) Leia’s anger always proved to be strong. Her hatred for Vader and the Empire is present. Lets say Vader sensed the force within Leia on Bespin and ordered Leia to be taken to the Executor immediately. Lando and Chewie are powerless to save her. Han is being taken to Jabba and Leia is being taken to the Empire. Their only hope is Luke. Luke fails. And Leia is at Vader’s mercy. But Vader senses something familiar, he finds out Leia is his daughter. He trains his daughter and brings her raw anger out. Her anger of the destruction of Alderaan, her anger of Vader and the Empire and her anger of losing Han. Leia proves to be powerful. “Together we will rule the galaxy, as father and daughter. We will turn the empire into a force for good.” And Leia unleashes her anger and fury upon Jabba’s palace and frees Han Solo. Han is horrified at what Leia has become and runs to the Rebellion. “The Smuggler will bring your brother to us” Together Vader and Leia meet with the Emperor. “Lord Vader, this is unexpected, but a surprise to be sure.” And as both Vader and Alia draw their Lightsabers, Palpatine realizes what’s happening and unleashes a storm of force lightning. Together they destroy the Emperor. What they do next is bring Luke into the fold. Leia convinces Luke to join their father to bring order to the galaxy and to make the Empire a force for good. Luke joins his sister and their father. Emperor Vader with his children Darth Zhoun and Darth Alia. Han would join them and become Leia’s admiral. Han was hesitant at first, but Leia has seduced Han. The Imperial Royal Family reigns over the Galaxy and peace, justice and order has been restored to the galaxy.

As for Kylo Ren. Darth Ira. Ira is latin for rage. Or since Kylo lives in the shadow of Vader he could be  Darth Noctus. Another name for rage that would suit Kylo would be Darth Vicion, as his vicious nature. He fully embraced the dark side in TLJ. Remember in ROTJ what the Emperor said? “Strike me down with all of your hatred, and your journey towards the dark side will be complete.” Luke hesitated, Kylo did not. When faced with the opportunity to kill Snoke, he took it. He was faced with the opportunity for redemption and returning to his family, he chose power and the throne. So let’s say Kylo chooses to abandon his old title. “Kylo Ren is dead, a foolish child trying to be Darth Vader, from his ashes something new arises, Darth Ira, Supreme Leader of the First Order and Dark Lord of the Sith” Kylo would then offer Rey to join him or die with the Resistance.  Rather than the pointless force grab in the throne room, a real fight between Kylo and Rey. Kylo wins and cuts Rey’s hand off and leaves her to die on the Supremacy.(she escapes of course) And thus begins Darth Ira’s rise as the Sith Lord of the galaxy. 

And finally Rey. Darth Solitudis” Solitudis, after the loneliness she endured all her life, a despair she will delight in making her enemies feel. For story purposes, lets say the throne room scene happens differently. Snoke knows who Rey truly is. Snoke will reveal that Rey was an experiment by Palpatine on his lab on Jakku. The people who she thought were her parents were just random junkers who sold her for a ship. Snoke manipulates Rey into joining him. “The belonging you always sought all your life, was by my side. Strike Kylo Ren, as you should have on Starkiller Base and take your place as my apprentice.” We have a fight that feels real and a fight we care about because we know these characters and not faceless guards who do not just die. But as we believe it’s going to go down as it was in ROTJ, Rey kills Kylo Ren and becomes Snoke’s new apprentice. “You have done well, my apprentice, heir to Palpatine, daughter of darkness. Hence forth, you shall be known as Darth Solitudis” Rey will make the Galaxy feel the loneliness and despair she felt all her life. Only Finn can bring her back to the light or stop her if he must.

Padme Amidala as a Sith Lord would be the Jedi’s worst nightmare