Hands down, USAA is the BEST in the business.

 They are always available to answer questions about all products and services they offer.  If they don't offer a service now, they can tell you about future plans for it.  (I was looking for Business insurance, and they told me it wasn't offered in my state YET, but should be within 6 months.

 I've had my car insurance with them for over 25 years.  They helped me devise ways to save money and adjust my coverage each time I bought a new car, got married (only once, LOL!), my son turned 16, etc.  I was also able to get estimates on-line for cars...