I have 2 Warlocks now, one as an alt to get to 30. I also have one Titan, lvl 26. I would choose Warlock in most cases. Warlock: A lot of technique required to fulfill full potential of Sunsinger's super. Can resurrect and return using super (to burn the guys who just killed you), extremely useful in VoG. Travels furthest horizontally. I have been able to effortlessly reach several useful platforms that my Titan and Hunter friends failed to reach. Sunsinger's super can reduce cooldown of ally abilities. Given a tactical and communicative team, this can be extremely useful in boss fights. Voidwalker when specced correctly for DPS can run rampant, especially in PvE. As my Titan I would watch as my Warlock fireteam swiftly obliterated dozens of enemies and be slightly envious, though my Titan isn't specced correctly. Overall I love playing as a Warlock. It took a couple weeks getting used to but now I feel like an angel of death.