Despite how polished and PvP-oriented this game was, it seemed to me that everyone would pretty much be the same, strategy wise. The main thing that gives you an advantage is cash shop / better gear. Each class had same type of gear, same skills, etc. There were obvious ways to use skills, so unless you are an idiot or/and suck, the way you cast skills will be similar to most others.
In other words, its mass PvP and whoever has the better gear is the better player.
Correct me if I am wrong and explain why.