If you got a family and want to see them occasionally ... Flydubai. Dubai also much better family life than Doha for sure.
If you are single and want to fly big planes all round the world, and don't mind putting up with the most aggressive, hostile corrupt and depressing work environment in the world ... QR widebody fleet.
If you want the worst of both worlds, QR narrowbody fleet. Avoid that one like the plague.
Better option would be, none of the above. There's lots of better jobs in the far east these days that pay same money without nearly as much lifestyle issues, and a lot more time off as well.