We met Tinker Bell this June in the MK and she was outstanding. Had the character quirks down, perfect. My daughter is nuts about all the Disney fairies movies and started to chat Tinker Bell up about Terrance, Vidia, etc. This Tinker Bell obviously memorized all the films because she responded just like she really did know those characters and lived that life. She really was phenomenal.
My favorite character moment, though, was in the Paradise Pier Hotel in
Disneyland. We did the character breakfast in the PCH Grill, and near the end, Pluto must have been bored. He walked over to the windows, opened the blinds, and proceeded to do the PERFECT imitation of a dog watching cars go by. It was hysterical. And come to think of it, this is (I think) the only character meal in the country where he could do this, because (I think) this is the only character restaurant that looks out on a street with cars driving by!