TidaBisa,
Choose:
3. Oman Air-B737NG Capt DEC
1. Emirates--F/O B777
6. Ethihad- B777 F/O
7. FlyDubai-B737NG DEC (it will probably a good job, but there are uncertainties to be discovered...)
DEC is always a good step and Oman is very pleasant. Just watch housing and kids education costs if you fall under that category.
EK is the best for the housing and kids education costs.