personally playing cn server in the past, just recently try na and tw version.

what i can say is tw really have the best ping compare to cn while i use vpn last time. NA really sorry to say the ping is consider bad for this game, not others.  this is due to with that ping u will unable to perform ani cancel skill to increase your dps that needed for high level dungeon. it can be play as normal in NA like click 1 skill and click the next skill, cast 1 by 1.  but thats not the way to enjoy BNS for me, not sure for others.  BNS special is it combat system,  if cant enjoy it myself think BNS is not worth to play compare to other mmo.

1 thing i notice in tw server,  the voice and words speak by npc is different with china 1.  feel so strange for me as play for long time in cn for the past......