@Roaming: I've yet to find an MMO that was truly challenging. Maybe the very beginning of WoW, it was a bit more thought-inducing, because tanks had to work for agro, healers had to work to keep people alive, and so on. Aside from that, I've never seen one.

@Hurtige: That's my point. They were all easy, some more than others. I was just saying this isn't the only MMO I've played. :P