Why Title the Enemy?

I've often wondered about the names that are given Satan. They are so close to the ones given our Savior. For instance below...the first verse in each pair speaks of the devil, the second, of Messiah:

*******
Prince
Eph 2:2
(2) Wherein in time past ye walked according to the course of this world, according to the prince of the power of the air, the spirit that now worketh in the children of disobedience:

Rev 1:5
(5) And from Jesus Christ, who is the faithful witness, and the first begotten of the dead, and the prince of the kings of the earth. Unto him that loved us, and washed us from our sins in his own blood,

*******
Lion
1Pe 5:8
(8) Be sensible and vigilant, because your adversary the Devil walks about like a roaring lion, seeking someone he may devour;

Hos 5:14
(14) For I will be to Ephraim as a lion, and as a strong lion to the house of Judah. I, even I, will tear and go away. I will take away, and none shall rescue him.

*******
Star
Isa 14:12
(12) How you are fallen from the heavens, O shining star, son of the morning! How you are cut down to the ground, you who weakened the nations!

Rev 22:16
(16) I, Jesus, have sent My angel to testify these things to you over the churches. I am the Root and the Offspring of David, the bright and Morning Star.

*******
King
Eze 28:12
(12) Son of man, lift up a lament over the king of Tyre, and say to him, So says the Lord Jehovah: You seal the measure, full of wisdom and perfect in beauty.

Rev 19:17
(17) And I saw one angel standing in the sun. And he cried with a great voice, saying to all the birds that fly in mid-heaven, Come and gather together to the supper of the great God,

*******
Ruler
Joh 14:30
(30) I shall no longer speak many things with you, for the ruler of this world comes, and he has nothing in Me.

Act 5:31
(31) This One God has exalted to be a Ruler and Savior to His right hand in order to give repentance and remission of sins to Israel.

But all that said, now I understand the whys and wherefores. There must be a comparison drawn for the sake of those who wonder if there is still a competition between the Light and the dark. There isn't.

Messiah is:
Prince of princes
Lion of lions
Star of stars
King of kings
and
Ruler of rulers