Probably MapleStory actually. The ENTIRE GAME sucks. I would make it my life's mission to burn every single copy of it if it were single player, but the community is so friendly. It is extremely easy to find cool guilds to join.
For actual gameplay, Runescape. It's the only MMO I've played in which quests are actually enjoyable, rather than just Kill/Loot Everything busy work, and a story line exists.
It's also the only MMO in which combat is not the entire focus. I think that's why it gets so much trash.
Add on that it is the least money grubbing MMO I've played, and that would be why I've been playing it for eight years.
H1N1 said:
The only mmo i've played is Vindictus and i really like its gameplay compared to most other mmo's.
edit: at least from what i've seen
"The only mmo i've played"
There's quite a flaw in your statement there...