I've been playing Need for Speed, Hello Kitty Online and MegaTen.
Maplestory grabbed my attention also!
However little developer MMOs like Drift City, 4story and everything else, I'm forgetting about as if they are WoW rip offs and clone but it's not only that, I simply don't trust them and the developers that make them.
I'm beginning not to trust them, I take my time to type up bug reports and feedback. This started off small btw and managed to get my suggestions into the game but with the bigger suggestions, it either doesn't make it into the game or it gets into the game but the developers mess it up and does it terrible!
What I like to do is post this in the forums just to get people to react alittle bit and NOT play the game for a small period. It works for me and companies usually do, so there is some hope for these small companies afterall!
This is why I like MMOs that have brands on them, because it means I can trust them a bit more even if my idea doesn't get thru, I know they'll get the feedback and make something better.