That's very true flighttimer!
So you should answer this question yourself, 330airbus!
Do you want the better professional life or the better social and personal life?
If you want to join QR, be prepared for working, working and working! Forget about the people in Qatar, the crazy driving habits, and high levels of boredom on your free time. It's going to be tough, but it will pay off few years later and for the rest of your life in this career..guaranteed!
Good luck.