Youhave read a lot about DOHA and Qatar .Mostly negative.However the salary seems to fairly high for Qatar ( generally behind eK in Salary)
A Grade 9 job is a managerial job 10 again Senior Manager and 11 Vice president. EK has ground jobs for flt crew positions that attract some benefits that are not normally associated with the normal management grades. The grades are prefixed FD.. these Grades are usually associated for FCTI ,SFI and Flt Deck.
Any way if you are bringing your family along . You will find that the benefits of schooling and accomodation ,medical for self and family will outweigh the higher salary ( still debatable). Shortage of of acccomodation can eat into your salary
Obviously if you are single and can handle the boredom of DOH and are looking at it short term. 1-3yrs, then Qatar is fine. However if you are bringing your family along and want a bit of a social life then Dubai and emirates is your best bet. But beware it is tending to get expensive. don't mention the "traffic"
Good Luck
BM