The XBox 360! 

After all of the holiday sales, the final numbers for console sales is estimated to be:

Xbox 360:  2 Million Units
Wii:  1.8 Million Units
PS3:  .75 Million Units

Would the 360 have won had more Wii and PS3 consoles been available?  No.

That just isn't the case, however, and more children saw the "Gray and Green Machine" under their tree this holiday season.  I think I speak for everyone when I say that I'm glad the launch hype is settling down and we can focus on playing vs. wanting.

[Source:  GamesIndustry]