Because warlocks are the best all around class, they have great subclasses for both PVE and PVP. Hunters do as well but they are for very specific reason, IE revives and invis during crota. Also the warlocks get to wear a DEAD RAMS SKULL on their head 1)warlocks 2)Titans 3)hunters Titans and warlocks are good for all activities but the warlocks are 1 because as previously mentioned.... DEAD RAM SKULL