1Up finds Halo 3 has something almost everyone can love:

It's hard to imagine a feature of this game that someone won't love (we didn't even get to talk about the robust file sharing, where you can swap gameplay screenshots, edited game films, game setups, and maps). Or you can just look at it as a sum of so many quality parts, that value-wise, Halo 3 is as sure a thing as it gets. Sure, no one aspect of the game is life-changing on its own, but perhaps the package as a whole is. After all, Halo 3 has enough content to keep you stuck to your controller for weeks, if not months or even years.

1Up gave Halo 3 a perfect score, ten out of ten.