A clearly biased person shouldn't have a featured review then or be allowed to do the review. It's like when they let Greg Miller do the Uncharted 3 review at IGN. Such Hyperbole had never been uttered before.
Everyone's biased. Some people are more critical or level-headed than others, but that doesn't make the less critical ones somehow ineligible to review. I reviewed Hotline Miami this issue and basically "gushed" about it, and I have every right to. Moreover, I described it as running counter to trends that I personally (a qualifier a critic should never have to use) see as negative in gaming, so it was a clearly biased review, yet I will gladly defend it as a piece of criticism. It's not about biased or unbiased; it's about having reasons to back what you say. The Halo 4 reviewer did not go into much more detail than "I'm a Halo fan, this sh*t is f*cking awsum"(which I, for the record, think is f*cking moronic), but he clearly stated his reasoning, and also explained that he was not just a fan but a die-hard one, i.e, someone unlikely to be very critical of the game in question.
Pretty easy to say "okay, this guy's a die-hard Halo fan, this review isn't something that I want to read" and leave it at that.
So, if I happened to love a game and write a glowing review about it it's bias? Isn't that what glowing reviews are all about? I admit I tried so hard to find flaws but I coudn't and I put my Halo bias aside. I stand by my review and I appreciate all of your constructive criticism.