Congratulations on this, well deserved, your reviews are always the best, except for Final Fantasy 13, and sympathies to Destructoid for losing you. This is a good objective standard to work toward.
I wonder though, about those games which have a lot of good going for them, and also a lot of things wrong with them. Like say the storytelling and graphical design is masterful but the code is full of bugs. How are they scored? By the good parts? By the bad parts? Some weighted average? Usually it is the holistic sum that ends up coming through. I was just thinking about some games that I really liked but had problems, and sticking rigidly to this scale they probably would have gotten 2.5 stars. Who knows maybe that is what they deserved--still though I would rather play one of those games than your 3 star game.