Lowrey,
Come to the Middle East with your eyes WIDE OPEN. Flydubai would be at the lower end of the scale IMO. I'd try for EK first, QR next (787s coming in June) and then EY.
I probably wouldn't even consider FD - read the threads about FD and you will understand why... None of these airlines is close to perfect, so, expect challenges anywhere you go and visit the Gulf BEFORE applying to make sure you can handle the culture and the blazing heat.