Here's a ranking of FF9 characters in terms of importance to the storyline.

[Dr. Casey]

1) Zidane
2) Garnet
3) Vivi
4) Eiko
5) Steiner
6) Freya
7) Amarant
8) Quina

Anyone agree or disagree? Make sure to elaborate with preferrably a paragraph or more, I want this topic to be full of content.