Triple jump is the best jump in the game for pvp (can't wait for quad jump in HoW). Throwing knife is insanity if you can use it well in pvp. Invisibility is good in pvp if you have any idea how to utilise it in pvp (I don't use it myself much). Arc blade is the easiest super to face in pvp, but it's still a good one given good execution. As for pve, the invisibility is quite useful. I like the gunslinger perks for reloading and stability. I enjoy the awesome of arc blade with razors edge plus encore and mask of the third man. For instance clearing out both sides of the crystal room on NCE before the shields even come down. Then again, I've played Hunter quite a bit. I enjoy my warlock as well, for totally other reasons. It feels safe having selfress for instance. And glide is nice in pve. But my core main class is Hunter.