The Diablo 3 bit was such garbage at the show. The make a big deal about Blizz coming back to consles only for it to be Diablo 3 (which no one really cares about anymore). Not only that but it will also be released on the PS3 so the reasoning behind Blizz even being at the show makes no sense all they showed was an already released game that runs on existing systems.
P.S. Square Enix's bit is a very close second.