I've played EVE (although I can't remember why), FFXI (decent if you have a party; even worse than WoW otherwise, or at least it was back before any of the expansions), EQ a long time ago, Ragnarok (eww, I know), GW (obviously) and WoW.
And yes; WoW is a grind-fest. If not for experience, (which, I'll admit, only took about a week or two of casual playing) then for items. I got bored of the game play (although playing a warlock probably wasn't the best choice, all things considered), I disliked the community, the story didn't interest me and I didn't have much money as it was. GW, on the other hand, beat WoW on all four points. I only quit playing that because I didn't have the time any more.
...can't we just agree to disagree or something? I feel like a basement-bound, overweight, ignorant little fucknugget; trying to say which MMO's good when pretty much all of them are the same anyway.