Personally, I think there is a very easy way to fix the review system:
Use an IMDB-style peer-review system. Going further than simply blind reviews, require user IDs for players reviewing the game.
For example, if I owned an Xbox 360 and wanted to review Deadly Premonition. In order to rate the game, the website would scan my gamercard (the one I tie into my reviewer account) to ensure that I indeed own the game.
That way, you'd only get reviews by users that have played and beaten the game. It could go even further with PSN/XBL IDs and check for achievements/trophies that are earned when you complete the game, to weight reviews by users that actually completed the game vs. those that may show that they are halfway through the game.
I think it'd go a long way for professional journalism, too. I hate it when someone reviews a game when its obvious they didn't play it long enough. For once, I'd love to see the reviewers gamercard to see exactly what achievements they unlocked to prove or disprove if they even beat the title in the first place.
Back from the dead, I'm afraid.
