Stiff Flex Handle vs Flex Handle

The stiff handle vs the flex handle is something thats going to be debated for a very long time in the game of baseball.The dispute/arguement is, which type of bat will give you better results? The difference between the bats are when you make contact with the ball the bat either flexes which mean its bends back a bit to give the ball more power behind it and gives it more pop. A stiff flex bat is one ehat stay strong all the way through the ball and doesnt not bend any.