I wonder how the list will look when all three MP, Halo 2, and GTA are released around the world and not just in America. I do not believe Killzone and Jak 3 will sell as good as MP in America.
Nintendo is going to have to push MP2 extra hard because GTA and Halo 2 are already running on mainstreme hype in America. MP2 is getting forgotten because everyone feels like it is going to be so much of the same same that it will be depressing that they haven't fixed the controls, added online, or given us a proper multiplayer. The multiplayer is only going to allow the player to play as Samus? And the ball stuff in multiplayer is garnering more hate than love with its gimicky application.
Nintendo may just drop the GameCube's price to help sales again. It is the lazy way to do things. It should be coupled by advertising, but they only advertize during the christmas season and that kills Nintendo every year.