99% of the discussion on this thread so far has revolved around EK.
For people from outside the sandpit it's worth reiterating that there is more to the Gulf than EK, there are very large quality of life differences between the Gulf major airlines, and that EK / DXB is generally considered the "best" of the sandpit options.
QR has a whole different set of issues and is widely considered the worst employer, for reasons that will become clear if you read up on some of those threads. The "unmentionable one" you'll have to do your own research on
tl:dr - don't jump into a contract with one of the other airlines because a bunch of EK guys sold you on the idea.