I never argued whether Metacritic was a way to compare games or not (it obviously is), I said it isn't the end all be all in determining what's better or not. You asked me what I metric I used, which I replied "my own". If you weren't challenging what I was saying, why continue to push the issue? The answer will always be subjective, regardless of Metacritic scores. That was my point.
Hopefully now this will end.
That may not have been what you meant but it is what you said - "reviews do not prove which is the better game". That's a far cry from "reviews are useful but not the end all be all". What else am I to assume when you seemed to make a definitive statement? I'm not even trying to be combative, I was simply curious since you said reviews don't prove anything what you think would be a fair metric with which to make a comparison.
Obviously this is a thread asking people's opinions but since you can never prove an opinion then other metrics are usually brought in to strengthen a point. You're the one who brought up the comparisons of certain games. I just didn't think it was a good point because most people agree GTA IV scores are an anomaly and it doesn't prove that all scores are useless. The rest of your comparsions were for games that didn't seem to be directly relatable. I don't care how many people mention Heavy Rain and Alan Wake in the same post, they're vastly different styles of games.
As for GT5s score, I don't think expectations alone would lower the score. If GTA IV scores proves anything it's the opposite. Everyone was expecting something superb and since there were no glaring flaws people scored based on their own hype. I think after similarly huge expectations and the long development cycle people expected perfection from GT5 yet it had a lot of very obvious flaws, especially compared with parts of Forza 3, that the disappointed compared to expectations lowered the scores beyond where they likely should have been. I don't think it meant that without those expectations it would have scored higher than F3 simply because F3 seems to be consistently good to great across the board while GT5 goes from amazing to iffy.