Vitiate - Shedding Limitations
I propose a new argument for the Vitiatites seeking to overturn the blurb the Darth Plagueis novel has.
Sure, as of January 2012, Darth Plagueis is more powerful than Vitiate - that's indisputable.
However, newly established praise for Vitiate in SoR, RotE, KotFE and KOTET allows it to be overturned.
An example of this would be that Vitiate created his Uber Holocron from KOTET as the age of ten.
Of course, this line of thinking demands that you subscribe to the "older quotes have no authority on newer content" policy, but it should work.