Qatar A. is better if you value service above all else.

Lufthansa has the 'german' :) approach to safety above all else. Plus if you ever plan to fly an animal with you, then lufthansa is the ONLY airline I recommend.

It really depends on what you prefer and the price of the ticket. If you had asked me to compare an airline like China Airlines, then it wouldn't even be a choice. Safety record over the years tells all.

"The greatness of a nation and its moral progress can be judged by the way its animals are treated." Mahatma Gandhi