It's Sion by the way.
For some reason I always spell it Scion . . . pardon the habit.
And being able to hold your body together and thus withstand any physical attack is far greater then anything Sidious can do imo
I agree that it takes intense will power. But you believe that that ability is superior to a person who can literally annihilate entire fleets with a single Force-attack?
I am sorry, but in terms of destruction or Force-usage, Sion (spelled it right! 😛) has not done anything on par with Sidious. Thus, it leads me to believe that Sion is no where near on Sidious's level in terms of Force attacks.
, and also limits the ways in which he can actually hurt and possibly kill Sion.
True. But if you can vaporize fleets, you can vaporize the atomic structure of a human.
And I know that palpatine could possibly do morichro pr a force drain or something
Which is the point. The Exile defeated Sion by manipulating him. Palpatine is probably the best manipulator that we have ever seen. He is, at least, on par with Kreia herself. Combine that with his phenomenal Force ability, and I don't see how Sion can withstand him.
, but the fact that Sion is able to hold his body together with his anger chanelled by the dark side of the force leads me to believe that his will is so strong that he would be able to resist pretty much anything that Sidious can throw at him.
He has intense will power and hatred, to be sure. But will power does not necessarily translate to Force power. Sion cannot handle a Force Storm.
You can also see how much of a badass he is in a couple of cutscenes, and his ferociousness, physical strength and agility was immense.
He certainly possesses superior physical strength to Sidious, but Sidious (by DE) was immensely agile and ferocious, being described as "moving faster than the eye can see".