All my 5 to this, maybe not Flash but Animation after all.
Excellent ambientation and staging, excellent use of postprocessing, excellent rigging, IMHO animation lacks something, just a little bit, but is not bad at all, is really good; elements like secondary action and follow through are well executed. The stage animation was definitely well used.
I don`t know why this hit number 3, should be 1 of the week.
I'm too lazy to read all the comments to see if this question has been asked, but can you please tell more about the software you used?