Since each life insurance company has different underwriting and approval guidelines, and each applicant for life insurance is different, no one insurer will be best for everyone.
However, it will help you to comparison shop among several leading life insurance carriers to find the one insurance company that offers the best life insurance coverage and rates for you.
It really depends on how the insurance company rates an applicant with your particular risk factors.
Risk factors are what help the life insurance company to understand how long they expect you to live. Your life expectancy will determine if you are approved for life insurance and how much you pay.
Of course, the type and amount of life insurance you need will also affect the premium for your policy.
Some of the main risk factors insurers take into consideration are your gender, health, age, occupation, family health history, hobbies, lifestyle, if you smoke or not, driving record, credit history, height-to-weight ratio, etc.
In addition, you may be required to take a paramed exam or full physical exam, and give blood for testing.
Here's an article that further explains life insurance for people over 50, how it works, and how you can compare life insurance plans and rates online.