here is a site that shows sales for the UK PS3 vs Xbox
http://xbox360glitches.posterous.com...box-360-vs-ps3
And some more
Xbox
http://gamrreview.vgchartz.com/sales...uty-black-ops/
PS3
http://gamrreview.vgchartz.com/sales...uty-black-ops/
I dont know, but the numbers dont lie as far as which is more popular even months after initial release