I see nobody wants to go first
While against my strategy...I will go to move this along.
Knights of the Old Republic not only is the most realistic choice out of these 3, but offers something else that Star Wars fans crave - a captivating plot.
Exploring many worlds we've never seen before, to organize the plot, the film will essentially broken up into these acts
Act I
We meet our main character Kris as he wakes up aboard the Republic ship the Leviathan as it is being attacked by Darth Malak and his Sith armada. A jedi, Bastilla Shan saves Kris by jettisoning him to the city planet of Taris on an escape pod where she says he will be safe for now. On Taris, Kris meets Carth Onasi, a republic pilot close with the Jedi, who claims he is here to protect Kris and explains through a flashback the Mandalorian wars and how Darth Malak recently overthrew his master, the evil Darth Revan, but is vulnerable because the location of the Sith hidden base, the Star Forge, was captured during the recent space onslaught. Kris asks about the Jedi who saved him and Carth explains that she is one of the most powerful Jedi ever and has a power known as battle mediation to manipulate the outcomes of war. The pair eventually meet Jolie, a native of Taris who Kris unexplicibly saves from a band of pirates and C134, Jolie's droid.
Carth gets a message from Bastilla to go to Dantooine as Kris has visions of Darth Malak coming to Taris. They board Carth's ship, the Ebon Hawk, and escape as the planet is destroyed by the Sith armada, however Malak senses a presence on the Ebon Hawk and tracks it's trajectory.
Act II
The Ebon Hawk lands on Dantooine and Kris meets Bastilla, who explains to him that he is a Jedi who was lost early in the wars, and they need to retrain him. During the training, Carth, Jolie, and the droid fly to the planet of Mannan where a Republic army awaits in case Malak was tracking them. As Kris trains he has terrible haunting flashbacks and becomes enrages, to which Bastilla approaches the Jedi Council who say that he must complete his training to save the galaxy. Darth Malak arrives and a massive Jedi Sith battle ensues. Malak goes straight for Kris but Bastilla whips out here double bladed yellow lightsaber and battles Malak. A Sith armada approsches Mannan and a land and space batthe ensue, though all seems lost. Kris slashes through troopers yet all of a sudden, lightning comes out of his fingers as he force pushes, and Malak approaches him "Master, you never change"
Act III
It's revealed that Kris, the main protagonist, is Darth Revan. During the war, Bastilla found the injured Revan and tried to wipe his memory clean. Bastilla gets captured and taken to the Star Forge and the remaining Jedi go in pursuit as the battle on Mannan continues. Kris feels the dark sides pull but goes along with the Jedi to the Star Forge. Dusguised, he enters the base as he remembers the locations and he senses Malak's presence as Malak attempts to use Bastilla's battle mediation against the Republic, but before he is successful, Kris enters and confronts him -decked out in his old Sith garments. He goes to Bastilla looking like he will kill her, but throws the lightsaber at Malak, and the two duel to a draw before Bastilla ends up helping besting Malak. The Republic arrives and captures the Star Forge but in the raid, Malak escapes as neither Bastilla nor Revan ended up killing him, because it's not the Jedi way.
In the end, they meet back up with the Ebon Hawk and fly off back to Dantooine to meet up with the Jedi, as Malak finds an apprentice...
To conclude:
This film is the only one out of the 3 that has a serious potential for sequels, something Disney loves. As well as a ton of Old Republic merchandise sales, something Disney also loves. And it works much better as a film rather than a Netflix series because this needs a big budget to be given justice. Netflix is too small a platform.
As said before, even if you have played the game, the plot isn't the exact same, just inspired by, so this is a brand new Star Wars experience in a time period that is probably the most interesting in all of Star Wars lore.
It's the best option out of the 3.