We had a poll with all three options, and Nintendo was the clear winner, with good reason (in my opinion). But there seemed to be people saying both Nintendo > Sony > MS and Nintendo > MS > Sony. So it would be interesting to see what the community as a whole thinks.
I would personally give it to Sony over Microsoft. I felt Microsoft's Kinect games were too similar to games for the Wii, while the Move games that Sony showed seemed more unique. And there were no comedy bits in the Microsoft conference, while the Sony conference had Kevin Butler, that PSP ad campaign, and even a severely humbled Gabe Newell. The 360 Slim's launch date of that week was a definite high point for Microsoft, but the lack of a price point for Kinect was disappointing: Sony revealed both a concrete launch date and pricing scheme for PS Move.
Both conferences had highlights and lowlights, but all taken into account, I would say Sony won over Microsoft by quite a significant margin.
What are your thoughts?