Why Is Whole Life Insurance More Expensive? 
A simple answer : Whole Life you are guaranteeing the premium/death benefit & the cash value . Universal Life , you can guarantee the premium/death benefit but not the cash value . Term of course has not cash value unless you are talking about a Return of Premium policy . With Whole Life you can see in the future what exactly the cash value will be . With the Universal Life , you can get a projection of what it will be . Generally speaking , Whole Life is 20-40 % more expensive than Universal depending on your age and health status . 