Wow, now that's a long list because I've played nearly every version of it except for 1,2,3,4, and 5 japanese version mainly because I don't understand japanese. ^_^;;
But here goes!
1) Rinoa(XIII)
2)Shadow (VI or III)
3)Zell (XIII)
4)Quistis (XIII)
5)Rikku (X)
6)Garnet (IX)
7)Seifer (XIII)
8)Squall (XIII)
And that's about all my FAVES in order from my most fave to my...8th most face. I still hate other characters, but that's just who I like, as in, I like all those people the rankings don't mean anything.