DeduS on 09 January 2012
360 will win - it has a lot going for it:
+ console price cut (very likely)
+ kinect price cut (will probably happen)
+ Halo 4 with crazy MS marketing
+ huge holiday sales, since it basically took over the Wii's position as the mainstream/casual console in the US
X360 might even peak again in 2012, which is nuts.
For the PS3 there is not much going on this year - at least nothing we know about. Sony won't cut the price again, there is no huge game in sight that might push consoles or at least generate some attention and we all know that Sony fails at marketing compared to MS.
So I think for 2012: X360 > PS3 by a decent margin
