At Vanguard - TenTonHammer, Martuk addresses the playstyle debate currently raging in the Vanguard official forums: PvP vs. PvE.
The two play styles are similar, but also very different, and often times tend to find themselves at odds with each other. PvE players will refer to PvP players as Gankers and Grievers, while PvP players will refer to PvE players with such names as Carebears.
Should developers take care of player vs. player enthusiasts first, or concentrate on cooperative adventuring against AI mobs? It's PvP vs. PvE at Vanguard - TenTonHammer!