I can't believe people are actually defending Cliffy, it's such a weird thing.
It's simple, not everyone will like Gears of War as much as everyone else, I'd even go so far as to say that Gears of War is a franchise that get's a lot of passes when other games are judged far more critically for similar faults (Like Zelda, God of War, Rockstar Games, Valve games). Games are also judged based on the competition, it's been three years since the last Gears of War and a lot of critically acclaimed games have come out since then, it's entered a very competitive market (when it comes to reviews) and it can't rely on the same tropes as the last game if it wants a straight 9/10 review lineup. Cliffy wanted Gears 3 to be the next Uncharted 2, Mass Effect 2 or Portal 2 and his disappointed with the results, though that result should be put on him and his team and not on the reviewer. The Eurogamer reviewer isn't a 'hater', he just want blown away and that's not his fault.
Bet with Conegamer and AussieGecko that the PS3 will have more exclusives in 2011 than the Wii or 360... or something.