Yuffie is redeemed in my eyes as she so ashamedly herself in ffvii, and then she performs amazingly in the bahamut fight and I can't help but feel her pain in Doc, when she stares up and says "vincent" there is something very emotional about that as she usually so hyper and cutesy. When aeris died and she was so sad i think part of it (other than they were friends obviously) was that yuffie was Very Young, but in Doc shes grown a lot, i love her.