The game that finally did it for me with most reviewers was FIFA 10. It got 9 and 10 across the board, but after playing the manager mode for just 1 season (which isn't exactly a lot), it started to get ridiculously buggy with players randomly disappearing from your squad amongst other major errors.
Not one review that I read picked up on it, yet it's something that a lot of people noticed on launch day! The reviewers had clearly played the game for no more than half an hour when reviewing it.

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