The only one I know well, is Vincent Valentine. All the others in all the Final Fantasies are the same to me ;) :P Other then that, her FF-X2 looks better IMHO :D

But, just so everyone knows:

Rikku - FF-X:

 

Happy? ;)

"...and the earth becomes my throne
I adapt to the unknown
Under wandering stars I've grown
By myself but not alone"