<< Gamespot...nooooooo, look away, it's hideous.
Blue's News
Voodoo Extreme
Both report when new reviews are done (several a day usually). So you can view 20 different reviews if you want to rather than relying on one site.
Gamerankings is great because they take the average of all the reviews a game gets and piles it into one score, very cool. Even has user reviews (ala gamespot). >>
Just wondering why stay away from Gamespot? Unforntley that is the only one I know of beside GameSpy.com, I'll have to check out the 2 you recommened.