I feel like this one in particular should get a revote sometime next month. Based on FFXIII alone...
6.5/10. Is likable in the scenes shes in, and is great as Snow's (and to a slightly lesser extent Light's) motivation in the story, but beyond that, shes essentially damsel in distress for the entire game. (yes, crystal sleep counts)
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A staple formula for FF villains:
"They only do this, but lets kill them anyway!!!"