I'm in a similar position here in Fla. I'm looking at going to a smaller and lighter CCW from my P226. I love the P228 but it is still a bit heavy and not much difference. You said that the wife is getting the G19---why not get another. Other choices would be USPc, P239 or P225(single stack)---going smaller you have SA XD, CS9, Kahr for subcompact. I still haven't decided but need to try out the G19 and USPc to decide.
If you trust all 3 and they all feel "right" and you don't mind the non DA/SA of your P226 then logically and moniteraly the G19 makes the most sense.