ffvii: red xiii: process of elimination
Cait Sith: same as above

FFVIII: Zell, just did not care for his fighting style

FFIX: Vivi: i'm not great with magic

FFX: Khimari: did not like that character

FFXII: Used all of them but least of all Penelo, she just wasn't as nice to look at as the others (until the end sequence that is, why couldn't she have been like that all the way thru lol)