The life insurance carrier that's going to offer the best rates for you may not be the insurance carrier that offers the best rates for someone else, because each insurer rates individuals based on their own personal risk factors.
There are a number of factors that go into the calculation of rates for a whole life policy, but that's only one area to consider.
Some life insurance carriers may offer participating whole life insurance policies (paying dividends that can be used to buy paid-up additional life insurance coverage, reduce the premiums, or pay cash to the policy owner of the life insurance). While other whole life policies may be non-participating, meaning they do not pay any dividends.
Another factor determining which whole life insurance plan will be best for your needs is the risk class for your rates. Some people may qualify for different risk classes with each life insurance carrier because each person has a different medical history and each insurance carrier has their own set of underwriting guidelines. Some insurers are more aggressive or strict in accepting certain types of health risks for life insurance; such as, diabetics or people with high cholesterol.
One way to find out which insurers may offer you the best rates is to compare whole life insurance rates from several life insurance carriers.