Japan and worldwide no. FF games sell around half their game sales in Japan region alone.
If we excluded Japan from the count then FF on X360 would outsell FFXIII on PS3. NA would make the sales numbers in favour of X360. In europe the game sales numbers would be narrowly in favour of PS3.FFXIII on X360 would outsell PS3 in non-Japan regions.
Anyway FFXIII release I believe will appear in Japan late 2010 at the earliest. Europe and NA release it will appear in 2011.







