Agree that comparing rates between posters is irrelevant because besides coverage (I agree 100/300 is my personal minimum), insurance varies greatly by area. Crime rate, rate of uninsured motorists, cost of repairs in an area, etc.
I've had good luck with Farmers, Farm Bureau, State Farm, and USAA. But the test is a claim. The only claim I've filed was Farm Bureau when my truck was vandalized. They were amazingly fast, paid for everything, and didn't raise my rates. Of course that was a while ago so they may have changed. I've not filed a claim with USAA but hear good things from friends.
To OP, your post is what's wrong with the industry though. I understand a rate increase after a second claim but even then a reasonable amount. My father-in-law didn't file a claim with All-State after Katrina because he didn't want his insurance to go up the and the damage was less than $1,000. All-State cancelled all South Florida policies regardless of claims.
Good luck on your search.