I think reviewers deserve a little more credit than they 'give in to the pressure' to hate FFXIII because it's 'fun'. They may have legitimate reasons for not liking this game, especially if a lot of people feel the same way. There are a couple of objective things that can tell you if a game is good or bad (such as precise controls or techical issues) but for the most part reviews are subjective and are the right opinion of that reviewer.