From what I have read and understood here, to save maximum money, it seems that the best place to be for the time being is Doha first, then Abu Dhabi next and then Dubai.
But for the most friendly and nicest place to work it seems than Abu Dhabi comes first Doha then Dubai.
And finally if you want to sacrify yourself to let your family enjoying a western lifestyle with all the bling bling, the you can opt for Dubai but you may forget about the save.
Am I wrong guys?