I've owned and carried the gamut in my 32yrs of ccw; a few 1911's, a couple of BHP's, a 92 here, a 220 or a 226 there, Kahrs, a P07 for a couple weeks, 686 & 629 in 4" trim and even a P7M8 have spent time on or in my belt (a smattering of j-frames throughout, of course). But it's Glock that sees 99.5% of my edc...they're simply right for me.
Since I can no longer tolerate AIWB for more than a couple of hours, I've dedicated myself to the 26.5 in a JM IWB#3 for the last 2 years. I can get away with a 19 in fall/winter clothes, but as @GAP has opined, when the 26 works so well as an all year round edc, why mess with the familiarity built through repetition by switching grip sizes?
When I'm mowing or landscaping, I usually opt for my .22 LCR in the front pocket, but after a shower, the 26.5 goes back on when I don clean clothes. On an extremely rare occasion, a G42 in a Keeper's Errand gets the nod, but that hasn't come up in more than a year.