For: PS3, Windows, Xbox 360
If I had to choose between Infinity Ward's Modern Warfare and competitor Retro Studios' Metroid Prime, I'd go with Metroid Prime. But Activision's more-realistic-than-usual (but not very realistic) modern-era first-person shooter would still be up there.
The first Modern Warfare certainly sold like gangbusters, perhaps proving that we're finally burned out on games themed to World War II.
Modern Warfare 2 brings more of the same but tacks on dual-wield weapons, snowmobile races, Russian vistas, tons of new multiplayer features, and the option to superheroically take on over 50 enemies at once.
Silly or no, I predict that the sun won't go down before this game goes platinum. One warning: Don't fall for the "Prestige Edition," which is priced over the moon at $150. I mean, an included pair of night-vision goggles? For real, Activision?