Right now the most powerful effects in pvp is stun and movement locking. It seems like the jobs that would reach platinum would be the ones that either can one shot targets, stun targets, or just lock movement out entirely. Been playing reaper a lot and it's not a bad job, but they need to get rid of the death mark ability and just give them better potencies considering they have no stun, can only slow down movement, and a bubble shield that is easily broken and doesn't help all that much most of the time.

Also being in melee and having to figure out where to do aoes is far more troublesome than what BLM or casters get to deal with.