British Guy,
If your mate comes to QR then at least he'll get an A320 rating out of it. He's not going to get that at FD. Dubai is a lot more expensive to live than Doha as well. Life on the A320 at QR isn't bad compared to LCC work. Having done both, I'm of the opinion QR A320 Fleet is better than LCC life, especially in the ME. Plus at QR there's the possibility of a fleet transfer later down the line. He's not going to get that at FD.