blu-ray clearly won because of ps3. i don't see how anybody could even argue with that.
i believe online streaming will be much bigger than hi-def. this benefits both 360 and ps3, since both can stream movies from 3rd party. however, i also believe ps3 can benefit from its blu-ray player capability, and i think just enough to start consistently outselling the 360 in America by 2009.
the Wii is an epidemic.