Actually, the system of reviews, sales numbers, and awards are pretty trumped up. Skyrim can lend much of its success to clever marketing and a pretty face. Reviews and Awards? Hah! I have some beach front property in Nebraska for sale if you put much faith in main stream reviews and awards. I won't deny Skyrim in its own right is a pretty good game, but far from being a "Game of the Year" in my opinion. Skyrim doesn't stand out really more than other titles. The fact is that there just really isn't much competition...It's like being first place in the Special Olympics.
And if all else fails, you can always say, "Well, nothing's very good these days, so it's no surprise people think this is good."
Are
some main-stream awards and reviews based around advertising? Sure. Does that mean that none of them have anything to do with quality? No. Did Skyrim only win "main-stream" awards? No. Do Skyrim's sales reflect a poorly-made game? No.
Advertising can only do so much. If the product isn't good, it will fail. Period.