EA seems to favor Microsoft over Sony.

[S.T.A.G.E.]

Bristow9091 said:
The way I see it, Activision + EA = Microsoft, and Ubisoft + [Insert big Japanese publisher/developer here] = Sony

Sony has the Japanese publishers by default because Japan supports the home brand. They see no major difference between Microsofts product and Sony over there. The Japanese publishers treat MS mostly equally outside of Japan due to demand.