So what is the difference you ask? Well an all-encompassing love is created as a circle covering all and hopefully controlling all. But the problem lies is the control. No one wants to be controlled. Even though it is a milder case that the all-consuming love make no mistake if it is not shared it will fall down around you. While all-consuming love takes control of you. In worst cases you become a stalker. But even if you don't it controls your emotions and therefore your life. And at some point you become unbearable.
Now lets look at the all-empowering love. Like it's name it empowers you both to rise up and become a better you through love. It is a light-airy kind of love. It allows the other to follow their dreams and allows you to also. there is a deep connection to the knowledge that if it's the one it will survive, grow, and flourish. By empowering the other person you empower the relationship.