No question...Ab Dab is a hands down winner.
Sitting in miles of traffic every day would do my head in
Besides that, in Abu Dhabi you can always travel up Sheik Z road and in 40-60 minutes you can visit all the sights and sounds of Dubai and still make it home in time for just about anything.
Where do the Dubains, Dubaiettes, Dubaiese, Dubaiites (is that a word?) get to go? Nowhere...
More importantly, what do you call someone from Dubai?