737 classics are simpler and reliable.
The NG's randomly have hidden structural weaknesses exposed during runway overruns and hard landings when the fuselage breaks up because of Ducommun and Boeing negligence.
The MAX is a steaming pile that may be a white elephant around Boeing's neck.
The 787 is notoriously-bad.
The 777 is pretty good.
Airbus has had much more automation for years. Are they dropping out of the sky? Maybe they manage their complexity better than Boeing, who hires underpaid engineers to work on things that they're really not qualified to do.