What will be the top-selling game that is not a pack-in? Why?
I will personally say that Super Smash Brothers Brawl, followed close behind by Mario Kart, will sell the best. SSBB sells the most because of the Wii userbase that is far larger than the Gamecube's, a huge amount of hype, and being a great game. This franchise's sales increased on a system with roughly 2/3 that of its predecessor, while Mario Kart decreased. Plus, anybody can enjoy Super Smash Brothers, even nongamers.
The top selling 360 game will be Halo 3, since Halo is the premier 360 franchise, and there isn't anything coming up that could sell better (unless they make Halo 4).
The best selling PS3 game will be Gran Turismo 5. It appeals to people in all parts of the world, and it sold better than every game on the PS2 except the Grand Theft Auto series.
Best selling multiplatform game will be GTA4. This time, its sales are split, which is the reason that I don't predict either version of the game to be the top sellers on their system.
But even if you combined the sales on both platforms, SSBB and Mario Kart will STILL sell better, since all 3 titles have similar appeals to the non-hardcore gamer, and SSBB and Mario Kart are on the cheaper, better selling system.
So what are your picks and why?













