That question is not much easier to answer, but it is one I can give some insight. Everybody has their favorite game for which they will live and die. Brand loyalty is as strong in the video game industry as it is in the clothing industry, for example, some people like Mario and some people like Crash Bandicoot, some like Triple Play 98 and some like World Series 98. Some like their game so much they refuse to look at anything else. This happens a lot in the area of sports video games.
Brand loyalty is good, but sometimes it gets in the way of our judgment.
Madden 97 for the Playstation outsold Gameday 97 when most people agreed Gameday was the better game. Brand loyalty can also get in the way when someone is reviewing games. I can honestly tell you I TRY to review a game by looking at what is on the screen, not by what is on the outside of the box. I have no brand loyalty. I would be lying if I didn't admit I have some predetermined expectations of a game.