If your talking about gamin systems, the Nintendo actually owns both in sales by quite a bit, then xbox is 2nd and playstation a close third.
Worldwide sales figures
1. Wii – 84.64 million as of 31 December 2010 (2010 -12-31)[update][8]
2. Xbox 360 – 50 million as of 6 January 2011 (2011 -01-06)[update][30]
3. PlayStation 3 – 47.9 million as of 31 December 2010 (2010 -12-31)[update][31]
