First Week: Halo: Reach
Lifetime: Gran Turismo 5 by 2-3 million (Game is big in Europe and the legs are HUGE in that region, also GT5 will sell a bit over 1 Million in Japan where Halo is non existant)
Metacritic:
GT5: 93-95%
Halo: Reach: 91-94%
Fedor Emelianenko - Greatest Fighter and most humble man to ever walk the earth: