They're all pretty good - Meadows/Greens/Lakes are closer to the hustle and bustle but still private enough for most - with Arabian Ranches being the more remote of the four - so its going to boil down to your own personal choice and whether you want an apartment/house/villa and where you'll be working I suppose (cos peak hour traffic's crazy).

If you're heading over there anyway, why don't you give yourself 3 weeks in a hotel and go check various locations out in the first week - there should be plenty of choice. Allow the last two weeks for the lease to be processed. (And remember its a year's rent up front along with the agents commission.)