I work for an insurance company, in claims. I don't sell insurance.

For someone who wants quotes from multiple companies, but doesn't want to do so online, my suggestion is this:
- get quotes from an independent agent who sells multiple companies. Be aware that independent agents can't quote for companies that use captive agents (see below).
- get quotes from a few captive agents as well. State Farm, Allstate, Nationwide, Farmers, and some of the other large companies use captive agents, meaning they can only quote that particular company. They're prohibited from selling for other companies.
- be sure you are getting quotes for exactly the same coverages, same deductible amounts, etc. so that you can compare apples-to-apples.