Haven't flown the 320, but have flown the 737 and jumpseated on the 320.
The 737 is rotten. 6-pack works maybe on the delivery flight, after that it's toast. You've got square feet of wasted LCD space that could have EICAM, but noooooo. Better get that useless HDG SEL on top so it doesn't clutter the display. Stealthy VNAV PATH-VNAV SPD reversions. Full throttle and speedbrake? Sure, why not? Cabin Temp Selectors? Those are for display purpose, only.
Hey, let's use the same warning for two different systems! Great idea!