After less than a week on sale, US retailer GameStop has picked Kinect as the first round winner in the Great Motion Controller War of 2010.
When asked whether Microsoft's Kinect add-on or Sony's Move would come out on top this Christmas, senior VP of merchandising and marketing Bob McKenzie told Eurogamer, "I'd say right now Microsoft's Kinect is looking to be the winner of the two for us.
"We're very happy with the sell through over the weekend. It has met our expectations and actually exceeded our initial forecasts."
"I do have them both obviously and the Move sports bundle is a great option," he added, "but I knew for my family with an eight-year-old daughter and ten-year-old boy that Kinect was really going to be the thing that was more geared towards my household."
Microsoft recently up-scaled its sales expectations for Kinect from three million to five million by Christmas, citing exceptional demand for the hands-free controller.
Sony has a similar target for its Move peripheral but has had another month on sale. It's shifted around 2.5 million units worldwide so far.
Kinect went on sale in the US on 4th November, with a European release due this Wednesday.