The best website I have seen to look at reviews for an insurance company is one of the oldest on the web, it is the BBB. Another great website to find out the ratings and analysis is A.M.Best. The companies you listed below all seem to have great ratings and are some of the most popular choices in the auto insurance industry today. The great news about these choices is the stability and financially backing they will be able to provide any consumer. The downside to going with a big company like these would be the numbers game. With any big company, you might find yourself more as a number or a statistic rather than a real human being. These companies will be in business no matter what you do or say. This gives the consumer no leverage. If you was to tell the CEO of a major company, "I will take my business elsewhere if you plan on doing this", they may not really care. If you go with a small agent or a company trying to survive in your community or state, they may be more likely to bend over backwards to insure your happiness. They would do whatever they could to make sure you re happy. However, they may not be able to do some of the things the bigger companies couldn't because of resources. With this all being said, each state does require any agent or company to meet all guidelines the state sets forth and obtain any license needed to operate within the state and the state regulates the insurance industry to protect the consumers. My advice would be to get an agent you trust or find a good company and check out the BBB or A.M. Best and find out how they have handled claims or their customer service is.