Hardcore Casual has thrown down the gauntlet, and challenged all comers to prove something interesting: that EVE Online hasn't yet solved our MMO problems. That's a strange thing to prove, but we here at Massively love nothing more than a challenge, so here goes.
HC's point is that in EVE, you can pretty much do anything the way you want to, anywhere at any time. EVE is limitless in terms of both progression and size-- skills can be leveled for months and years, and even if all the skills are maxed out (they won't be, because CCP keeps adding new ones), there's always more ISK to be made. And because the game is so big and mostly empty space, everyone can play on one world, and there's no need for the sharding that other games must do to keep their servers up.
However, as much as I love EVE, it is not a perfect MMO.