After several long rounds of voting, the result of YJ7 vs YM7 was broadcasted in a one-time, special 30-second TV commercial on TV Asahi on 30th October 2011.
The result should come as no surprise if you have been following the competition. Yes, the winners are YM7. They won 3 rounds while YJ7 won just 2, and the votes for YM7 overall heavily outweighed YJ7's.
It also seems that unlike the previous year's YJ vs PB competition, only the winners YM7 will get their own song. The song and PV was previewed during the TV commercial, and the title is Renai Sousenkyo. Sashihara Rino leads as center, yet another unsurprising development. Kasai Tomomi, a member of YM7, does not appear in the song as she is on a break from activities due to pelvic peritonitis.
The commercial can be viewed below. For now, congratulations to YM7!