It's a robust and polished first-person shooter with an excellent multiplayer component, sure, but—these virtues notwithstanding—I find myself inexplicably enamoured with the original Halo trilogy because of its goofy-ass story, which this third entry concludes magnificently. There's something epic (in both a traditional and a 2007 sense of the word) about fending off the alien hordes as Master Chief, humanity's last hope. It's shamelessly puerile power fantasy stuff and I love it.