Bioshock 2, no contest!
End of 2010 Predictions (Original Prediction Made: Jan. 1, 2010---Revised April 1, 2010---Revised Again July 1, 2010---Revised Again on Nov. 1, 2010)
PS3: 46 MIL (April Revision: 44 MIL, July Revision 43 MIL, Nov. Revision 45MIL)
360: 44 MIL (April Revision: 46 MIL, July Revision: 48 MIL, Nov. Revision 49MIL)
WII: 82 MIL (Apr. Revision: 84 MIL, Jul. Revision: 82 MIL, Nov. Revision: 82MIL)
THE MUST BUY LIST of 2010: Gran Turismo 5
THE BOUGHT LIST of 2010: White Knight Chrnociles, Heavy Rain, Final Fantasy 13, God of War 3, Modnation Racers, Sports Champions