Is there a compelling reason to choose one type/brand of breaker & panel (Eaton CH, Eaton BR, Square-D QO, Square-D HOM, Siemens, GE) over another when putting a new electrical panel and breakers in? Or is availability (I am loading my panel with dual-function CAFCI/GFCI breakers on all 15 and 20A branch circuits, provided no shared neutrals turn up that is) the sole consideration I should take into account when deciding on one brand of breakers over another?
I am of the strong opinion that for a residential application it almost does not matter what brand you choose. They are all nearly the same, even QO and CH series. Sure, copper buss is nice, but not mandatory. I have seen and installed pretty much every major brand in the last 25 years or so, they are ALL ok.
I would choose something that you can get breakers and parts locally and easily.
I seem to recall avoiding "Square D Homeline" due to possible issues with the copper over aluminum buss bars. I considered trying to get an "interchange/nonproprietary" brand having seen some folks with obsolete panels flailing to find breakers, but ended up with Square D QO as both available, affordable and with a solid copper buss. I hope it turns out to be "non-niche" enough that I don't have problems down the road.