For next week the most impressive drop should be the Wii in America next week as it is coming from a high and supply is diverted to Japan for their holiday sales.
For the upcoming weeks (plural) I expect the PS3 and 360 to drop the most as they do not have as high a demand as the Wii and DS, with the 360 dropping the most as PS3 numbers should stay stable or go up in Japan at first (for their holiday) and should drop more in the Xmas heavy America.
Using that prediction and looking back at the xmas period from the 10th of november to the 24th December:
Wii 4,933,921
PS3 2,786,352
X360 2,740,126
It looks like Just_Ben is gonna win his bet as I believe the 360 will drop more than the PS3 and the PS3 already has a 46k lead.
Also if only considering next week's drop off, given that the Wii is likely to sell around 400k in Japan according to the source and should pull another 100-200k in NA+Others the Wii should drop less than a million consoles so even if the DS only drops off by 50% it would drop more than the Wii in raw numbers (and would drop more in raw numbers than they other non-Wii consoles sold the week before Christmas). It is quite impressive to say the least.
"I do not suffer from insanity, I enjoy every minute of it"
