I think they'll both pass the marks you set by Jan 5th, but 3DS first. With a new hardware model, a new 2D Mario, the great software lineup this Holiday, and the typical sales boost Nintendo always get in Nov/Dec... no contest, even with the benchmark for Vita set so low. Vita has sold 2.5 mil in the past 8 months, and it'll struggle to sell another 1 mil before the end of October, while 3DS will easily sell over 4 mil in the same period.
Wait, hang on a second....
As of August 11th, these are the sales numbers that we have:
2011 Sales (Week Ending Dec 31st): 3DS = 13,250,062 - PSV = 481,573
2012 Sales (Week Ending Aug 11th): 3DS = 5,947,661 - PSV = 2,172,615
3DS sold less than 50% its 2011 numbers so far this year, while Vita sold more than 4 times its 2011 numbers? 3DS IS D00MED CONFIRMED
