I enjoy both. Both of them require different skills that deserve respect. Halo requires accuracy and quick movements while CoD requires you to have quick reactions and makes you know/outthink the other players. Both of them require you to be smart about the spawn points to be skillful. Halo and CoD also have great stories behind them. Halo has always been an amazing space opera with the battle between the salvation or extinction of mankind. CoD has always been the story to show the gritty, horrific theatre of war and the struggle between good and evil. While Halo focused on the evil of sci-fi threats, CoD focused of the reality of evil within mankind. It only takes 1 person to ruin the world, but it takes many people to stop that evil. I enjoy both games.