I would endorse eternaltransit's comments re Emirates Skywards, in that you must work very hard to earn miles, only to then have them swallowed up at a pretty hefty rate - always assuming you can actually find award availability in advance on the flights/dates you want ..... (Good luck with that !)

That said, I do like them as a carrier for their onboard service & overall standards. But, few marks from me for their FFP.

No first-hand experience of EY.