Yes, Emperor Palpatine both used and despised Darth Vader, viewing him as a powerful but flawed tool, a "broken" masterpiece who never reached his full potential after being disfigured, leading to disgust, resentment, and constant exploitation, though he did initially manipulate Anakin Skywalker with a twisted paternal affection for power, ultimately seeking replacement and finding Vader's self-loathing annoying.
No, Palpatine did not care even in the slightest for Vader. Sheev only had affection for himself. He cared for Vader only as a tool and weapon.
We've seen time and time again that Palpatine treats post-ROTS Vader like a servant, and doesn't have much respect for him. He constantly punishes and abuses Vader, and doesn't seem to have any of the kindness that he displayed before he got put in the suit.
He infamously swayed Anakin towards the dark side throughout the prequel trilogy, exploiting his growing disillusionment with the Jedi Order and fear of Padme dying, leading to Anakin betraying the Jedi and becoming the tyrannical Darth Vader. Padme was never saved, and Vader continued to be mistreated under Sidious.
The saddest Star Wars deaths often involve tragic heroism, lost potential, or poignant goodbyes, with popular choices including Duchess Satine (Obi-Wan's lost love), Clone Force 99's Tech (self-sacrifice for family), Kanan Jarrus (heroic sacrifice for Hera and Ezra), Padmé Amidala (fading hope for Anakin), Han Solo (betrayed by his son), and Clone Trooper 99 (innocent, selfless heroism). These deaths resonate due to their emotional impact, the characters' significance, or the broken promises they represent.
In canon it was Kirak Infil'a , Cere Junda, Obi-Wan and Lord Momin . All messed him up quite badly with Kirak winning round 1 but losing round 2 and Momin cutting off his arm. Obi-Wan actually beat Vader. In Legends it was Shaa Koon, An'ya Kuro, a clone of Maul and Galen Marek.
It is widely speculated that Palpatine deliberately ensured the suit would be agonizing, keeping Vader angry, dependent, and subservient—turning pain into a tool of control.
The answer, revealed in Episode IX: The Rise of Skywalker, rewrote much of what we thought we knew. Rey is the granddaughter of Emperor Palpatine, also known as Darth Sidious or Sheev Palpatine—not through a traditional lineage, but through a failed clone named Dathan, Rey's father.
Who did palpatine trust the most? Either Tarkin or Mas Amedda. We all know Vader and Dooku were deceived into following Palpatine's wishes and he needed to continue to bend them to his wishes. Meanwhile, Mas Amedda and Tarkin were naturally loyal to Palpatine by their own choices, without external pressure.
Darth Maul is the weakest. Bane was strong : he killed all the Sith and lots of Jedi.
Vader's suit is basically a bacta tank on crack. Without it, even the force would only be able to sustain him for a short time.  Vader's First Moments in his Suit: Revenge of the Sith Novelization by Matthew Stover . . .
No, Darth Plagueis is not Anakin Skywalker's father; Anakin had no biological father, being born of the Force itself in response to Plagueis's dark side manipulations, with Palpatine's tales of Plagueis's power over life being a manipulation to turn Anakin to the dark side, though Plagueis's attempts to create life did inadvertently cause Anakin's conception.
It kicks off right after the end scene of ROTS and shows Vader beginning his hunt for Jedi in his new body. His very first target is a Jedi Kirak Infil'a, a Jedi who lived for combat who nearly kills Vader.
Out of those 4 Sidious was the most powerful. He was strong in the force but his ability to manipulate a entire galaxy into crowning him, a Sith Lord, as Emperor and giving him absolute rule over a entire galaxy. He was the only one to achieve the main goal of the Sith, Galactic Dominance.
Revenge of the Sith
Palpatine explains that Plagueis was so powerful and wise, he had mastered the dark side of the Force to such an extent that he could cheat death (mostly saving people he cared about from death) and create life; unnatural abilities which are unknown to the Jedi.
In Star Wars lore, Order 37 was a grim Clone Trooper contingency plan to capture a wanted individual (often a Jedi) by taking a civilian population hostage, locking down the area, and threatening mass execution if the target wasn't surrendered, making it a horrific tactic used by the Empire to force Jedi compliance. It was considered more brutal than Order 66 because it targeted civilians directly, forcing Jedi to often turn themselves in to save innocent lives, as seen on planets like Bellassa.
Jar Jar Binks is the worst Star Wars character of all time, and he's known for that. George Lucas wanted to make him comedy relief hanging out with a young Obi-Wan Kenobi, Anakin Skywalker, and Qui Gon Jinn for The Phantom Menace but it only caused fans to hate him even more.