I think that the Ps3 can reach 40 million before either the 360 can reach 44.25 million, and the Wii can reach 78 million.
This bet is just for amusements, and is not intended to create fanboy discussions. What I do like to see, however, are normal sales discussions.
Just to make everything clear: I mean that the Ps3 will reach the 40 million mark before:
The 360 reaches 44.25 million OR the Wii reaches 78 million. If you're going to look at how the consoles sell currently, then the Ps3 is the (clear) loser.
Who would like to take the bet?