Perfect World International is pretty similar to WoW as far as graphics are concerned. Shaiya from Aeria Games is also similar, but with simpler controls. 12 Sky 2 is a PvP type game with PvE thrown in for leveling.
For a more creepy feel there is Requiem: Bloodymare.
My favorite free MMORPG has to be Dream of Mirror Online. It does have anime style graphics with a more light-hearted feel to the stories, but the job customization options are amazing. Almost any job from mercenary to doctor can be soloed thanks to the ability to sub job skills on to other jobs and use other armors as well.
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