Nomura said neither would be more important than the other, so I guess it's up to how the players feel about how important of what is going to be revealed in either of the scenarios.
Aqua is suddenly starting to perk my interest more and more. She calls herself Master, that's pretty damn cool.
But I'm a long time sucker for Terra=you know who. I need to find that shit out before I pop a blood vessel. And there's the Ven (how the fuck does he look like Roxas) thing. So many things I want to know. I can't say for sure who's more important at the moment.