You could also do Ethiopian and get upgraded to the 78. I've spent time in Addis and Dubai and MUCH prefer Addis. You'll be paying a minimum of $2500 a month rent in Dxb and that's to be paid in advance one year typically for expats. Expect your landlord to raise your rent after 6 months...You won't have the time or energy to go on vacation in Dubai.
Ethiopian will fly you and your family business class to anywhere in their network. If you and the Mrs. want to take your 10 days in Bangkok, no problem, business class all the way. You'll be treated with respect at Ethiopian and at all your destinations. You will be treated like a second tier, low cost airline monkey at FlyDubai. You will be told what to do by Indian dispatchers at FlyDubai. At Ethiopian, you're in charge. Addis is a lot of fun. Dubai is the Paris of the sand box...You'll save more money at Ethiopian. At FlyDubai, your wife will be so bored that you'll find her trying to keep up with all the other pilot Mrs. Thus, no savings. If you want to leave FlyDubai, it will take you 2 months. If you quit FlyDubai after a year, you will owe them $ for training even if you were already typed and current on the 73. If you leave without notice and paying your "debt" to FlyDubai, you will be arrested if u ever return to the UAE. Don't even try to transit through! You'll go to interesting destinations with actual time off to enjoy the exotic locales at Ethiopian. Ethiopians are cooler than Arabs and Indians. Ethiopians don't arrest women if they're raped by a Muslim. Ethiopians don't treat you like a slave. Ethiopians have a rich and vibrant culture. Ethiopians don't hate infidels. Ethiopian women are hot. Ethiopian engineers know all the good bars, clubs and restaurants in all the destinations. Ethiopian engineers will look for the best woman in the country to introduce you to. Ethiopian engineers will watch your back late at night at shady locations they have taken you to. Ethiopians are funny and curious.