Originally Posted by Insignia_Enithma
TBH, they are both powerful. But Kreia may know allot of ancient techniques and secrets that Palpatine himself did not have access to and so my opinion is Kreia would win.
This is very debatable, after all Palpatine had access to the Telos Holocron. (featured in the Jedi vs Sith guide) http://starwars.wikia.com/wiki/Telos_Holocron
among others and in it there is an entire section of Palpatine talking about finding ancient sith knowledge, let alone what is in the Telos holocron itself.