like the title says...
Sony came out and said 1m in "North America" initially. If we assume a 90/10 split thats 900k in USA. Microsoft said 1m WW. What's the split? Could we assume 70/30 USA Europe? If so, that's 700K USA, so they're not too far behind.
The other piece is I saw quite a few anectodal report that Xbox recieved much more restock on black friday. I saw a few people throwing out numbers like 15 Xbox's and 4 PS4's at their local Wal Mart for BF, for example.