FFXIV ARR. vs E.S.O.

Two really interesting MMORPGs are hitting PS4 mid 2014. Final Fantasy XIV: A Realm Reborn and Elder Scrolls Online. Both require a $15 monthly subscription and obviously that will cause friction in our wallets since most of us will not pay for both.

So what are your thoughts? Which one do you think will utilize the PS4 technology more? Which one will have the better RPG mechanics? Is one more grindcore than the other? Pros and Cons to both?

As a previous player of FFXI, I'm really tempted to go with my FF fanboy side and get XIV, The great story telling, awesome classes, chocobos. But watching E.S.O. I wonder if it would appeal to my adventurer side, climbing mountains, hiding in shadows, sniping from cover.