PvP Class with most potential?

[MalcolmReynolds]

Monk , great damage with insane sustainability

I just don't see MNK being one of the top classes unless they change the way their stances work, especially against anyone that can even remotely kite them. Of course SE has said they'd adjust abilities for PvP though, so that may not end up being the case anyways.

It'll likely be a ranged Job that rules PvP though, at least initially until things are finely balanced. Like striderbob said, one of the main issues is latency. You can be right next to the enemy and you'll often get the "target is not in range" message. An easy way they could fix this would be to increase the range of close up skills and abilities but we'll have to wait and see what measures, if any, are taken.