I'm a huge fan of PvP centric MMO's played out as a campaign with a begining and end. Add mechanics that emphasize team play, territory and resource control, along with a healthy metagame component, and you've got me interested. EVE, Battleground Europe, and GW2's WvW are such games and this little gem really hits the mark when it comes to good games in this genre. Want to know more? Read on!