If the Wii wins designers wont be able to make truly spectular visually stunning games using techniques and technologies that the heavenly sword devs are. Things like what they are doing will make it so that you cant truly be taken in by the characters and make you feel right in the action.
I know im going to be flamed in every way for this but seriously think about it, does any Wii games other then maybe Zelda or Metroid really bring you into the action, or make you envision yourself as the character? I know the SNES and N64 did but I've played a lot of GC games, none really pulled me in (starfox kinda did).
Give it a rest...the PS3 wont win this generation...