Would Microsoft have crushed Sony if the Xbox 360 had had HD DVD built in?

[AceRock]

all I know is that we would be seeing a lot better quality titles all around if the 360 would have come with the hd-dvd or blu-ray drive. The size restraints of the 360's current disc hold back what is possible in multiplats, size wise not neccesarily graphics or physics or what have you. The 30GB disc of hd-dvd would have been pretty welcome.