I'm assuming you mean DE Sidious. That seems unlikely. End of Dark Empire-Luke is powerful enough to defeat Sidious with the aid of an untrained Leia "unlocking hidden reserves" in him - earlier, Palpatine before getting a young body acknowledges that beginning of DE Luke could have given him a fight (which suggests he's already at least on par with RotJ Sidious, never mind that Palpatine states he has grown more powerful). Is the Force potential unlocked by a Jedi completely untrained in Battle Meditation really > decades of additional training and growth he's achieved by NJO/LotF/FotJ? That strikes me as highly unlikely, particularly given that Lucas basically states that full potential Luke > Sidious.
He defeated Palpatine conventionally but couldn't handle his Force storm.
Evidence DE Palpatine was able to boost his own Force potential?
Which wasn't enough to be > Luke + some unlocked potential from an untrained Leia. I'm guessing three decades of power growth > untrained battle meditation, so FotJ Luke is definitely superior (plus he has his haxxed Force light ability, shatterpoint, some proto-vaapad, fold space, etc.)
My guess:
TPM - end of DE (maybe), black fleet crisis (probably), Vector Prime (almost certainly), mid-NJO (definitely)
Round 2: RotS - see TPM
Round 3: RotJ - probably by the black fleet crisis
Round 4: DE - black fleet crisis as a swordsman, early-mid NJO in overall combat, mid NJO - TUF in strength in the Force
My response was in the context of his earliest incarnation; the one we see during ESB.
Palpatine defeated him conventionally as well, earlier, but in a different setting.
Yes, Luke had no answer for the greatest powers of Palpatine (DE).
I will provide evidence when I have time and access to the relevant sources. You will have to wait for some hours.
What's with the untrained claims?
Luke had begun training Leia in the ways of the Force soon after the events of RoTJ. Moreover, Leia was found to be gifted in the use of Battle Meditation and similar powers.
Luke and Leia, collectively, utilized Force Harmony technique to disrupt Palpatine's connection with the Force. Since Palpatine was preoccupied with conjuring and controlling the Force Storm, he couldn't defend himself from the Force Harmony technique.
It surprises me why Palpatine didn't use Force Lightning Storm on the two Jedi before conjuring the Force Storm. An error of judgment on his part.
Last edited by S_W_LeGenD on Apr 7th, 2016 at 06:44 AM
Round 1: TPM
I think late NR Luke should do it, given how close he should be to his Yuuzhan Vong Wars iteration. Somewhere after 20 ABY?
Round 2: RotS
Early NJO Luke.
Round 3: RotJ
Prime NJO Luke.
Round 4: DE
Prime NJO Luke or prime FotJ Luke.
__________________
They are angry because they have been forced to recognize that their hour has arrived; that the time has come to surrender power to Shimrra and the new order."
Resurrected in a youthful clone body, Palpatine does not reveal himself immediately. Studying the dark side of the Force to become more powerful, his education results in three manifestos: The Book of Anger, The Weakness of Inferiors, and The Creation of Monsters.
Taken from The Ultimate Visual Guide: Updated and Expanded
&
Soon he was ready to strike. Fully healed and in greater control of the Dark Side than ever, he finally acted to end the Mutiny.
Taken from The Dark Empire Sourcebook
&
"You've grown very strong in the Force since we last met… But then, so have I!" (Palpatine)
I'll respond to SW_Legend when I've time; meanwhile, to clear this up:
No, the title is correct: I'm asking at what point in time Luke Skywalker surpasses Darth Sidious. The different rounds refer to Palpatine's various incarnations, because they vary in power and so may have been surpassed by Luke at different stages. "Earliest Palpatine that Luke Skywalker could defeat" is a pretty uninteresting question; the answer is fetus Palpatine.