PoD Darth Bane vs ROTJ Luke Skywalker
They fight, but before you decide who wins:
"The rancor burst forth from the trees and began loping across the sand, bellowing its terrible cry. Bane held his ground, watching it come, marveling at the speed with which the massive beast moved. When it had closed the distance between them to less than fifty meters, he calmly held up a hand and reached out with the Force to touch the mind of the charging monster.At his unspoken command it stumbled to a halt and stood in place, panting. Careful to keep the creature's predatory instincts firmly in check, Bane approached the rancor. It remained still, as docile as a tauntaun being inspected by its rider.
From its size Bane could see it was a full-grown male, though the bright coloration of its hide and the small number of scars suggested that it must have only recently come to adulthood. He laid his palm on one of its massive legs, feeling the trembling muscles beneath the skin as he probed deeper into its animal brain.
He found no awareness, concept, or understanding of the Masters who had once tamed such beasts for use as guardians and mounts. He wasn't surprised: the Rakata had vanished many centuries before this rancor had been born. But Bane was looking for something else.
A collage of images and sensations assailed him. Countless hunts through the forest, most ending in successful slaughter. The rending of sinew and bone. Feasting on the quarry's still-warm flesh. The search for a mate. Battling with another rancor for dominance. And then, finally, he found what he was searching for.
Buried deep in the creature's memories was the image of a great four-sided stone pyramid hidden deep within the jungle's heart. The rancor had seen it only once, back when it was still a youngling in the care of the herd mothers. Yet the structure had left an indelible mark on the brutish mind.
The rancor was an animal, the top of the Unknown World's food chain. It knew no fear, yet it let out a low moan as Bane dredged up the memory of that Temple. The beast shuddered, knowing what was expected of it, but it was powerless to flee; the Force compelled it to obey.
It crouched low to the ground, and Bane leapt up onto its back. It rose carefully to its feet, its rider perched on its great, hunched shoulders. At Bane's command the rancor lumbered off, leaving the beach behind and heading back into the forest, carrying him toward the ancient Rakatan Temple.
...
Bane couldn't see more than a few meters ahead through the thick vegetation, but he knew they were close now. He could sense the power of the Temple, calling to him from behind the impenetrable curtain of tangled vines and twisted branches. Clamping down with the dark side, he crushed the last of the mighty rancor's will to resist and urged it forward."
- Darth Blaine: Path of Destruction
VS
Who wins? The equal of Darth Vader, or The Rancor riding Sith Lord?