The problem with these gaming magazines probably is: They want to see money before they write a good (positive) review. At least this is what I know from a big German magazine. If you want to know the ´real´ percentage a game deserves, better subtract 2-3% for each page of advertising in that mag from the same producer or distributor ;)
I always wondered why crappy games can get away with good scores until I saw a letter: A friend of mine asked a mag to review his game, and they answered something like - ok, we give it a rating of 65% [which means it is crap], but if you are going to place [expensive] ads in our mag, we can discuss better ratings up to 85% [of course depending on the amount of ads].
BTW: That doesnt mean, every mag uses such a policy. But it is the only Mag for which I know how games are ´rated´...