The whole point is comparing the scores to their metacritic (or gamerankings) average. The question people are trying to answer is "how much lower or higher does this magazine review each consoles' games compared to the overall reviews they get?"
Not that this article answers the question very well... I don't think it does, anyway.
Quoted for common sense. Thanks for pointing out the real subject of this thread, it's impressive how many people have missed it.
MY HYPE LIST: 1) Gran Turismo 5; 2) Civilization V; 3) Starcraft II; 4) The Last Guardian; 5) Metal Gear Solid: Rising