I created a bladedancer hunter because they seemed so lethal in pvp while playing my titan. Playing nearly only pvp(pvp only since level 5) I have leveled him level 15 in just 25 games. I have amassed a 1.15 k/d ratio despite only just unlocking my first last row perk the last time I played him and being matched mostly with and against level 25+. Speed is a great aid in positioning which is really the most important part of pvp since the difference between a max toughness player and a min toughness player is like 3 auto rifle bullets and is 0 at melee range with a shotgun. The combination of a sticky grenade, long range melee, current opness of auto rifles and shotguns and most destructive super in the game make bladedancers easily the best class in the game currently for pvp. I can't speak to gunslinger as I have played bladedancer exclusively. One thing to as a Titan main is that shoulder charge require running in a straight line so it is not as easy to pull off as you might think. If you see a titan running straight at you, strafe to the right or left and he will either turn and lose the charge or miss the shoulder charge and be vulnerable for its duration. Also never enter the bubble shield of a defender if you see his get an overshield the second hes casts it, it will take at least 3 people to take him down in there.