Back home, finally.

(SPOILER)

1) Laguna Loire.

2) I sense a semi-trick question. As you go through the game, you meet in Galbadia Garden, but chronologically, they first meet in Edea's Orphanage. I'll go with the latter, as I think that is what you wanted wasn't it?

3) Haven't a clue but I'll go with Laguna simply because he's the leader of their trio.

4) Ellone?

5) Pass. Not a hope in hell in guessing my way out of this one.