3DS, then PS4, then Xbox One, then PS3, then 360, then PS Vita, then Wii U, then DS, then PSP, and finally Wii.

The Wii will not win but it will do better tan The Wi U and Vita due to Skylanders and Disney Infinity X mas sales- The Wii has been the #1 seller of those 2 games and they should sell pretty well this holiday

PS3 with Gran Turismo.

If we're including handhelds, the 3DS should take this pretty easily.  Even if the 360 manages to pull ahead in the US or the PS3 in Europe, 3DS sales should be strong enough across all three regions to be on top by a good margin.  PS4 and XBO are unlikely to have enough supply to match the 3DS.

How much of a gap do you think there will be between the 3DS and the next place console then?

Well the 3DS sold over 4 million last December, and will sell decidedly more this time around. So I'll let you be the judge: can the PS4 or X1, which Sony and Microsoft are expecting to ship 5 million LTD by the end of March, sell that same amount at retail in December alone?

That seems awfully optimistic for Nintendo. You say 3D World will elevate it to sustained PS3/360 leve sales?

As much as  would love for that to happen, I expect Wii U to pick up to decent levels, but remain significantly below the much cheaper PS3 and 360.

I think it'll be:

3DS
PS3
PS4
X360
XONE
WIIU
PSV
WII
PSP
DS

I think the PS3 will be helped by Gran Turismo 6 (but not that much) and the PS4 will be afected by lack of stock, so the PS3 will beat the PS4.

1. 3DS
2. PS3
3. PS4
4. Xbox One
5. 360
6. Vita or Wii U.