On another note, it's worth mentioning only Sidious, Plagueis, and Vitiate have really evolved beyond the limits of midichlorians among the main characters.
Plagueis has done this via midichlorian manipulation, but frankly, Vitiate and Sidious' draining of millions and billions respectively is going to yield greater results.
Again, Vitiate absorbed the power of eight-thousand of the "most powerful" Sith Lords of the era, along with the rest of the life and Force energy of the planet. While the argument that this was primarily aimed to fuel his immortality is true, effectively becoming a god was just as important, and while there's no precedent to really set on how much energy is needed to achieve such, I think we can all agree that a majority of the energy should still be there in Vitiate's reserves. Add on leeching off Revan's power for three-centuries and wiping clean the powerful nexus of Ziost, and we certainly have a character that is logically considerably more powerful than Plagueis. Of course noting Vitiate was already a prodigy of almost unprecedented proportions even before beginning all his draining, too.