i've never fired the first three, but i have fired extensively or owned the the second three. the bersa and ppk are my favorite. i would like the p232 as well if it's slide didn't chop up the top of my hand every time i pulled the trigger. its low set slide can slice your hand pretty bad if you have a meaty paw like mine. the bersa was extremely reliable as long as you fed it the right ammunition. it seemed pretty picky. i've never owned a ppk, but i have fired a buddy's extensively. he only ever gave me one type of ammo, but it worked flawlessly. both it and the walther handled recoil very well. follow up shots were effortless.
Favorite range gun for the money - CZ 75B or STI Spartan V 9mm
Go-to carry setup - Walther PPS or PPQ in FIST kydex holster 1AK
Favorite semi-auto design - HK P7
"A Sig is like a lightsaber - not as clumsy or random as a Glock."