The lowest quote does not always provide the best value.  Consider these factors:

Financial strength of your insurance company. The lower its financial rating, the less likely your insurance company will be there when you need to collect on a claim

If you are involved in an accident, will your car insurance company replace with original manufacturer parts, or does your company require you to accept aftermarket parts?

What is your company's reputation among the public?

Consider a high deductible. If your payments are substantially lower with a high deductible, and you go for a long period of time between claims, then a higher deductible may be cheaper for you in the long run.