Ok here it is this is going to seem messed up but i think its the truth....
Xenmas is the leader of the org, the org are all nobodies rearrange xenmas's name and you get ansem x the nobody of ansem rearrange roxas name you get sora x the nobody of sora, im not sure about the rest but im trying to translate them, also diz has three different plans to get kingdom hearts im guessing cause he wants the power... Ansem, Ansem X, No Heart X, those three he has different plans for to somehow get into kingdom hearts