I would recommend Perfect World,
Iv been playing for around 3 years now and love every minute.
Private server i play on,
If you want to try the Private server im on then gimme a shout in game, My characters are Mishisan or Foxglove, or just shout for a member of the Quietus guild.
The game itself is easy to learn, the graphics are stunning and the community is one of the best iv seen.
The PvP and PvE is the best iv come across, all races are pretty much well balanced and the customisation of your character is mind boggling.
Heres some gameplay.
My Character. :P