Probably Zack, mostly because he seems the easiest to get along with given my personality. I'm a major introvert, so pairing me with another introvert like Squall or Cloud is likely to end up getting silent and awkward real quick. I'm not sporty enough to hold a conversation with Tidus, I hate flirts like Baltheir, and I don't even know anything about the casts of 3, 13, or 15. From what little I know of Zack he seems good at making conversation, and would probably do his best to ensure I had a good time. Also maybe if I warn him what's coming he won't die.