A surprise to be sure but a welcome one
His entire existence is treason
Not in-character. Voldemort has his own scaling too. Voldy > Severus > Harry > average wizard not trained in Occlumency
While certainly useful, is not nearly as powerful as Legend's version of it. Voldemort is pretty adept at stacking multiple spell effects one after the other, including AoE stuff (see his battle against Dumbledore)
Thought based teleportation counters.
Doesn't particularly matter when this would mostly be a hax battle. At least, from Voldy's side. He has way greater variety in that sense, including his legilimency magic allowing him to keep tabs on Palpatine's actions.
Palps would not just hold him with TK, he could easily try snapping his neck with ease. While it's true Canon precognition is not as good in its legends counter part, it still will allow him to predict voldemorts attacks.
Still doesn't reach Sidious' level since Luke himself resists city-wide mind hax just a few months more or less after A New Hope. And mind hax absolutely is in character for Sidious. Iirc correctly he told some giant monster thing to go kill itself, he also was on the verge of mind haxxing ROTJ Luke, who's vastly superior to his ANH self.
Except Palpatine's precognition also allows him to sense even the intentions behind Voldemort's actions. Couple this with Sidious' telepathy and he can essentially know what Voldemort is going to do and counter effectively.
Aside from the fact Palpatine's precognition can predict where Voldemort will teleport, he also doesn't need to choke and grab Voldemort with the Force necessarily, he can just as easily use force pushes and waves to knock back and disarm Voldemort.
Again, Sidious is above the likes of Vader and Endor Luke who themselves are massively superior to post-ANH Luke who could resist city-wide mind hax. Voldemort is not mind tampering with Palpatine's mind, while Palpatine can tamper with his.
Voldemort has not contended against someone with the precognitive, telepathic and telekinetic prowess of someone like Sidious, and most of Voldemort's abilities can be countered one way or another.
Palpatine will predict where Voldemort teleports and can use telekinesis to just...rip him apart? Snap his neck? Even if he didn't want to use lethal methods (for whatever reason) he can at the very least disarm and disorient Voldemort, although obviously he can go for much more fatal applications of this power.
Yeah good luck transmuting Palpatine's Force Lightning which can take even Vader by surprise, and overpower his defenses as well. Not to mention it was too quick for Yoda too.
What you mean Voldemort possessing someone as a spirit? He did that only against animals and a Professor who was actively seeking him out, so it's not anymore in character for Voldemort than mind hax is for Palpatine, as I've explained above. Sidious can incap with mind hax just fine, or better yet counter Voldemort's possession (if it's used) by directly absorbing his life-force.
And Voldemort is quite arrogant himself.
I don't know if canon has the same explanation Legends had to consider raw numbers as potency, but Voldemort himself could also influence the entire Battle of Hogwarts (including Snape himself at the same time). By layers, they are plenty similar, even with range.
I would argue Palpatine has much higher mind hax and telepathy though. He was able to mind hax an entity that in turn could mind hax Vader who could mind hax ESB era Luke, who had developed his powers further than post-ANH Luke (a few months from the events of ANH) who had the feat of resisting city level mind hax.
I've already outlined my reasons as to how Sidious can counter possession through incapacitating with Voldemort through mind hax, or simply absorbing Voldemort's life-force.
AP isn't meaningless, any significant force-based attack from Palpatine one-shots Voldemort, including his ranged attacks like Force Lightning and telekinesis.
Palpatine did do it in canon, but it was against Stormtroopers, which... well yeah they aren't exactly wall level in general dura are they? But the heat is a very powerful boon.
OOC, or, should I say, he's never done it. He has apsolutely ragdolled a bitch bitches with the force before, but he's never pretzeled them, Obi Wan was the guy I recall doing that in canon and it was against commando droids, not living, breathing individuals
Used against fodders in The Clone Wars, he has literally never done it any other time
