I had a 232. Great watch and awesome lume. The straps are a pain (for me) to change, but the fit is superb. I see the 422's (and 372's) at my local AD. The power reserve indicator on the back is cool. I personally don't like the "fake" faux patina on the markers. But that is just me. If you could tell us what other PAM's you have, it would help. If you have other luminors, then I would say 232. It is harder to get a nice 232 than a 422 if that helps. Either way you can't go to wrong. Good luck!
