Based primarily on trailer impressions and interviews, it seems like most of the major events and occurrences revolve around Terra and Ven. Terra's struggle with darkness and Ven's enigmatic issues seem to be the main focus while Aqua serves as the spectator and witness to the plot. (Though that's not to say that her story won't be as deep, but it certainly isn't as advertised.) Having said that, I'm gonna play hers first because it seems to be the least involved, and because I'm curious about discovering her significance towards everything, seeing as how there's a load of information on Terra and Ven. After her scenario, I'll play Ven's and then Terra's. I think that Terra is the central character of the three with the most importance, so I want to save his for last.