Haven't gone that particular route so I don't know the connections. Planes are pretty new, good IFE and Cabin Service is fine. I can't remember if EY have online seat selection or not.. makes a big difference on economy long-haul. And if you're travelling Business? - go the shortest route and pass the cost differential onto somebody else.
As the previous post indicated AUH is not great so it comes down to the connection time... and any more than a couple, three hours in AUH won't be funny.. I usually try to go for the shortest end-to-end travel time, but price is the main driver. On long-haul if you have to spilt it - changing planes in the middle of the journey is way better that short sectors at either end... horrible. For 800 bucks savings, I'd go EY - and buy something much nicer than an Airline seat, a few movies and some plastic food with the money you've saved.
