There was a discussion at the ISML chat 'houkago chat time', whether Sora would beat Madoka. It was pretty one-sided though, with main arguments against being the following term(s): Incestuous. Additionally it seems that it is inevitable that Iwasawa will beat Kyouko (unfortunately in my opinion). Finally, whether Ika-Musume or Yuno would arise victorious is still beyond me, personally I've voted for Ika-Chan due to Chibi-Ika's cuteness factor.