I have shot and owned a couple of the above...just my opinion.
My dads walther was a good gun. Would have a FTE once in a while and would bite my hand....badly at times...not impressive
for such a highly praised gun....very comfy though.
The feg line...ppk/ppks sized are the smc/pmk series. They have
a reputation as being as good mechanically as walthers...some
say a little better. I have fired the smc series...the guns I shot, I
would carry. Dependable, small and accurate.
Makarov. The tank of pistols...dependable and accurate. A little bigger and ammo may be a prob. depending on where you live.
Not really the PPK style/ different lines
Cz 83..not as small as the walther/feg/bersa..style. This is my fav.
Shoots better than many guns that are twice as much. Carries 13 rnds..etc, etc Same as Mak, not really the PPK style.
Sig 230/232...nice gun. Same style and size as the walther ppk.
I have shot a few. They are a sig, pricey and nice.
I have heard some people say they arent built as strong as they should be and hollow point feeding issues...but that may be just talk....
Bersa .380 no personal experience..local dealers seem to hold them in pretty high regards and say local LE use them as a B/U
at times. Priced a little more than a similar FEG.....
Hope this helps...shoot well