The winners of the Osaka round have been determined with Mino and Yui's performance of Code Geass coming out on top. They faced some tough competition but I think what put them over the top was the extreme emotion that they put into their performance and also a kiss scene to start things off. Here is a shot of them when they found out they won:

I don't think they expected it with the other good performances that day. Here is another view of them posing with the placards showing the prizes that they one, a Brother Lock Sewing Machine and a trip to the WCS championship: