Play ranger, it is VERY scary. You have damage, you have mobility, mau form to run from zergs (there will be zergs), speed boosts, you have crowd control, you have silence, you have demobilizations, you have hide to choose and pick your fights, element of surprise. You will have fun. There is only one single catch.. Do not give up on the class, stick with it until you are full 2 star gear, Runa BOW, RST or Bastion fuse +15. Then you will really see its true potential, in full strife the class is pretty depressing.
Disclaimer* What I say below is GENERAL opinion. Do not take the information provided below and try to apply to individual players, if you see a certain class is ranked higher it doesn't mean you will win against highly exceptional people who have mastered certain classes.
But as far as my GENERAL opinion in my PvP Tier list.. it goes like this...
Spiritmaster S++ (God Tier) 1 v 1 or 3 v 3, even world. If you use everything in your skill bar you should not lose to any class 1 v 1.
AetherTech S+ (Legendary) 1 v 1 S++ or 3 v 3, it lacks in world PvP.. but this class always pulls miracles... nobody knows why you cant sleep it or cant stun it or resist random debuffs.. nobody knows why they win but they win.
Gunslinger S (Mythic) 1 v 1 miracle workers, 3 v 3 capable, world PvP better than AT, excels in flight PvP -80 flight skill to kill transformers with low flight in reshanta sieges with 0 gear. TRRRRRRRRRRRRRRRRRRROLL CLASS.
Ranger A+ Eternal (Check above)
Sorcerer A - This class a lot of knowledge to master, its a chess. Not checkers. Master of crowd control, the moment you lose control and start becoming a brainless glass cannon, that's when you become skill-capped like me, sometimes I forget I have sleeps~ *^_^'
Gladiator B... its very painful to play this class in 1 v 1.. or maybe its because I am a sorcerer I find them weak. But in group PvP they are S+++Gods *^_^'
Templars? I dont know... pull 1 2 3 4 pull 5 6 7? whatever who cares.. :DD
Bard... is very meh, all bards are complaining about 4.6 they want higher patches
Assassin depends on your ping first of all before anything else like skill or gear
Clerics are S++++ tier in group pvp situation, Chanters are good in PvP but you need a very skilled one, or they instantly become useless.