I have a P229, P239, and a HK USPc all in 357Sig. The 229 is hands down the best of the three. The USPc in 357Sig is a rare bird to find also. I use to own one and I traded it away. HK also stopped making and supporting the 357Sig barrels/guns so anything chambered in it are getting harder to find. The 229 handles the round very good and super accurate. I don't encounter the snap of the 357 like a lot of people report. I actually think it is very pleasant to shoot. It is very expensive though to feed.
Ditto on what sig1473 said except I haven't found my 239 in .357 yet just 9mm. The USPc in .357 is very nice. Find a 229 in .40 or .357 then buy the other cal bbl.