The inevitable debate of someone-else-should-have-been-Man-Of-The-Year is part of the December news cycle.

I doubt Time will ever pick anyone that nobody complains about, and if they ever did then they'd probably be disappointed to find that their circulation was way down.

I think Zuckerberg is about as good a pick as any. If it were Assange then I'd accuse Time of recentism, since hardly anyone even know who he was back in June, and we may mostly have forgotten by next June.