Basically because IGN hasn't been caught selling out to sponsors yet. I seriously doubt Gamespot was alone in that practice, they just happened to be stupid and obvious about it. But until the same thing happens at IGN, I'll give them the benefit of the doubt.
It's not like you can lump the entire output of any of these games sites together anyway. IGN has some great reviewers and some atrocious ones. Luckily the major releases usually go to the good ones.







