If any of the major poles are correct, there will be more XBone's then PS4.. the only area of the world where the XBone is even close is the US.. and its 60-40% there.. most major non US areas is closer to 75-25% with the PS4 being the more preferred of course those are just Poll's, it could easily change one way or another on games, how the hardware actually preforms, etc..
good news he XBone is supposed to be pretty much done Hardware wise.. so they should have time to make um, while not officially but rumors say the PS4 is still getting finalized.. so less time to build units.. Amazon had Xbone's (day one units) for sale for weeks when announced, the PS4 was sold out in 2 days.. there was some argument on this and i still have a screenshot of Xbones (day one) for sale a few days or a week after announced on amazon someplace.
so far MS has lowered its release day numbers by almost a million.. (rumors are not as good a yield as expected) while Sony has said there will be no shortage and has upped there release day numbers - PR? or truth, no way to tell only thing for sure is the MS lowering numbers (actual news release).
there where a few day one's popping up yesterday again.. so who knows.. I went PS4.. for one reason, I prefer the Sony Controller (been using it since psone days) the Xbone will be purchased later too im sure. All the BS MS tried pull (and failed) has me a bit angry with them.. like a bully who is called.. and changes it mind, its still a wanker for trying, im not forgiving so quick.