Luftwaffe Airlines ! My own !
I fly whichever can get me where I am going with the least expense and hopefully non-stop.
I used to fly Aeroflot.
The outside restrooms were a bit of a pain, as was the requirement to stick my arm through the window on take off to improve the lift.
I also enjoyed "Thank you for flying Aeroflot, we never forget you have a choice - No SCRATCH THAT, you have NO choice!"
I liked the umbrellas to keep the rain off during the flight, and the stewardesses who had to sample the vodka first to make sure it was OK for the passengers.
The pilots were very good, trained to the highest level. Hey, they even had gloves with "L" and "R" on the back so that they knew (a) which hand to put them on" and (b) which way they were going.
I fly which ever i get at that time. I don't have any favorite fly.
Usually I fly with Emirates.
Their inflight entertainment and service was excellent. And the good
thing about emirates is we can easily get the emirates discount voucher
which save a lot.