The only decent MMO I've ever come across is The Endless Forest by Tale of Tales.
I don't own it (can't afford the monthly fee), but what I've played of World of Warcraft was very fun.
at the moment im still playing world of warcraft, although its kinda boring already, im only playing during weekends though, so that maybe it, but i think thats one of the best mmo out there
Well right now i play mabinogi, and as soon as i get done i will play it, and a game called florensia, both are good from what i have played even though i haven't gotten in it that much because of cr geomatry...i have one that's supposed to be a free version of wow, in a way but i can't find it now....
I play Guild Wars (Semi MMO) and I have played World of Warcraft before.