I currently have AAA and have had them for 8 or 9 years. They have been good to work with regarding homeowners claims. My premiums are higher than other companies for the cars, but cheaper on the house, so it even'd out making it a no brainer to stay put. This year, homeowners rates are skyrocketing in Florida due to roofing companies scamming the insurance, causing all of our rates to go up, so I have no idea how they compare for my upcoming renewals. I may switch to another company and be dropped in 30 days for no reason.
I used to have State Farm when I lived in Minnesota, and I thought I was a lifer. They treated me right. no increases after an accident, regardless of fault, homeowners was fair, etc. Moved to Florida and State Farm wouldn't even quote me.
I guess it all depends where you live and anything regional that impacts their bottom line determines if you get treated right, or not.