I traveled Y last month MEL-LHR and had the luxury of Bulkhead seats. I also won't be throwing my name into the ring!
I just got back from Europe on QR. The MEL-DOH segment is great, the 777 is really a very nice config 3-3-3 and much better seat pitch than QF or BA.
Unfortunately the DOH-BRU segment wasn't so nice, and A330 was 2-4-2 but the pitch sucked, and it has a foot rest that folds up and hits your shins if you're over 5'5". Still, the 777 flight is stunning (And we managed to get an empty middle seat both ways).