This is all very subjective. I would say Yu-Na displayed at this Wrolds the same lack of emotion as she did in Vancouver. What she did was rather acting with her facial expression as if somebody (David Wilson?) told her she should do it and her PCS would be higher. On the other hand, I find her 2011 Worlds free skate to be her best effort presention-wise and in terms of projecting emotions; technical mistakes notwithstanding.
Yes I love her program from 2011. I wish she would bring that back since she barely skated it.