I'm in the process of a major remodel on my own house. I installed a SquareD 200 amp meter/main. I installed a SquareD 400 amp main lug panelboard next to the meter-main. I went with 400 amp to have the ability to install PV and battery back feeds in the future. The panelboard supplies (2) 100 amp feeders and a couple other heavy loads (ovens, future EV charger, etc.).
I was originally going to go with HOM load centers since I could not justify the cost increase for QO load centers and breakers. I had my power guy at the wholesaler add the QO load centers with breakers onto the panelboard quote to see if it helped with the pricing. The pricing for the QO came back less than I get HOM even with the contract SPA pricing set up on the account. I went for the QO.
Over the years I have used pretty much all the manufactures. Back in the mid/late 80's Challenger was my primary line. GE was the secondary line. Between then and now have I used a lot of Siemens and Eaton BR. Basically use which ever brand the wholesaler can get me the best SPA price on.
I was using Eaton CH for a short run and it seemed like good equipment but my supplier dropped the line and not many local suppliers carry it.
From my experience I would rank the manufactures in the following order.
(1) QO (its #1 due to copper bus and thinner breakers)
(2) HOM
(3) Siemens and Eaton BR are tied
(4) GE
As others of said my biggest complaint against SquareD is the size of the AFCI breakers. I'm told they need to be this big to fit inside the thinner QO body but wish they would make a different smaller circuit board for the HOM.
I know GE AFCI's have a following due to having fewer "false" tripping issues. The GE AFCI's don't have the GF component. I feel if an AFCI breaker is tripping do to a GF condition the issue should be found and not covered up by a breaker that doesn't look for the problem.
For commercial panelboards and switchboards I rank.
(1) IEM (best construction)
(2) SquardD (best breakers)