Hello TD ill take a bite here as l'd like to get a consensus as well,
Been flying the bus family for 7 years and this is what i think of each variant.
320 : config 3 in turbulent and gusty landings and high developing sink rates laned me at uncomfortable pitch rates and attitudes with pitch auto-callout
Since then ive become reluctant to use this config.
I can feel there is no response from the auto-thrust to the energy requirement.
I've found these type of landings much more comfortable using manual thrust,
I can control sink rate with thrust and maintain energy below 30 feet when airspeed is no longer in the scan.
321 config 3 landings are nice and smooth and even better in manual thrust.
Id like to hear more opinions or critique. Thank you.