love em both. half-life's better, and im not surprised that it's doing way better than halo in the poll considering the fact that most people who are nuts about halo are too busy playing beer pong to post on forums. still, theyre really different styles of games. Halo is just about shooting anything you see, while Half-life provides some context, and really strong backstory as to why you're shooting everything you see. half-life is much more about telling the story than it is about the giving you the gameplay, while halo is great for gamers with the attention span of a three year old, and constantly needs explosions, titties, or both to keep his focus on the screen and not on his limited edition master chief bong, and i wouldn't have either of them any other way.