What to change?
The cockpit is way to noisy. Give us the possibility to close the air outlets in the ceiling. The same with the side outlets. The whole nose should be redesigned.
The warning system is simply outdated. The six pack is a jurassic design and half the time one or the other light is not working when it is pressed. You need to press and wiggle the bl...y thing to get the lights to work. Boeing bought MD. Helios would never have happened with a MD 80 warning system.
The overhead panel is embarrasing. It works, but that is all. If SWA is telling Boeing to keep it, tell them to f off. What will they do, buy A 320 and retrain all pilots, or give the pilots a short difference course?
The check list for the aircondition/pressurisation system was changed not after Ryanair got it wrong (more than one time), but after a number of B 737 operators got it wrong. That pretty much stopped after the check list changed. The panel is not easy to read.
Have Boeing modified the spoiler system so it will retract automatically if you advance the throttles?
It don't feel the need to trim, trim, trim every time i move the thrust levers. And don't get me started on that idiotic speed trim system.
The Max does not impress me so far. I hope I don't have to fly it.