I might make Corinne a straight mage, since if I was playing her in my game I'd cast magic more than anything. I did kind of wanted her to be a decent fighter, but with Noko and Seiko (my knight and monk) dishing out damage - I don't think I'll need to worry. Besides, she's supposed to have the best magic power and spell points. So thus, I think I'll go with:

Corinne: Sorceress (the "ress" is for feminism ^_^)

Noko: Knight (even if they do sound dull XD)

Seiko: Monk

Merri: Cleric (always need one of those!)