Nintendo DS should I think... followed closely by Wii then PS2.
Somewhere around 160-170mil for DS, 155-165 for Wii, and 145-155 for PS2.
Oh, and you are wrong... the PS2 has not sold 140 million. it has only "shipped" 133 million, and that includes replacement units (ie for broken consoles... ones never sent to retail)
It's hard to be sure, but the actual sold figure is somewhere between what VGC shows (just over 120 million) and about 5 mil more than that (125 million)








