What's the most underrated game on Xbox 360?

[Darth Tigris]

Banjo-Kazooie: Nuts and Bolts.  I can think of others, but the amount of undeserved hate this game gets is just an sad indictment on mob gamer mentality.

A must read:  http://kotaku.com/5442635/the-bravest-game-mistakenly-neglected