As somebody who played FFXI, and now play Wow, but is most definitely considering coming back to play the new version of FFXIV, I find it interesting how many people think Wow is easy.
Granted, a great deal of Wow is indeed easy. Some of it so much so that it definitely has completely obliterated any sense of achievement. A great example of one thing FF crushed Wow on (in my opinion), is the crafting system. I nearly maxed leatherworking before leaving, and I was 2nd best on the server at the time I left, just couldn't get the mats to fully max it out. The whole crafting +1 thing was interesting as well. I'm a 450 JC in Wow with every epic cut, but even though I am the only player on the server with every cut, I also realize that any other player could accomplish it with relative ease should they desire.
Howver, while it is indeed easy to get to level 80 in Wow, a very limited portion of the player base and/or guilds have successfully managed to complete anything that has been set to "hard" mode. Thus they do have something set aside for the population of Wow that doesn't want to coast through endgame content.
I sense that some FF players will say, well, the Wow casuals still get to see the same endgame content that the hardcore guys do. True, but Wow never competed with FF in terms of the storyline content. It's just beat up things, get loot basically.
So where is the balance. How does FFXIV allow the casual gamer to have a far more enriching experience in FFXIV then they did in FFXI?
There were definitely things about FFXI I really enjoyed, but there were too many deal breakers that made Wow more enjoyable to play for me.
I hope this new version balances things out.