Merry Christmas everybody,
I figured the standard answer would have been flow, and the poll results seem to bear that out.
FWIW, I think the most important thing you learn over the course of your training is timing. Form, flow, and power are all quite important, but I don't think they mean jack if you don't have the timing down. Doing (or not doing) things at the right time would seem to be what we all should be working towards.
Just my 2 cents; hope you got what you wished for this holiday season...