I'm not a fan of MMOs. Too time consuming to get what you're paying for, and the second you're hacked, you're pretty ****ed.

I heard Perfect World was alright. I've watched my brother play Runescape with his friends, which looked alright too - our anti-virus software didn't look alright though after he'd played that for a while.

Only MMO I ever got into was a text based one. I had a lot of fun on there with friends and we really got into the roleplaying aspect of it. ^^; I guess WKC more or less counts too. But yeah, I'm not a fan of mainstream MMOs that people go batty over.