Dear Mike:

Yes, Michael in Hebrew means, "Who is like God?"

Each choir of angels have specific jobs, specific jurisdictions. Thus, in order for St. Michael to do what God wants him to do, he was created in the Choir that is appropriate to his assigned task and jurisdiction.

Although we do not know for certain about the hierarchy of angels tradition holds to Nine Choirs of Angels... from Highest to lowest:

1. Seraphim (meaning "to burn")
   They were considered the highest order of the Hierarchy of Angels. They are the Angels of Love, Light, and Fire. Seraphim are the closest to God. In the Throne Room, several of the Seraphim were described as flying directly above the Throne of God and constantly sing His praise. They are also called "the Burning Ones" because they are aflame with Love. It is said that the light they give off is so intense, that not even other divine beings may look upon them. There is said to be four of these angelic beings. They are listed as the four holy beasts in the book of Revelation and are also described as angels with six wings; two covering the face, two covering the feet, and two were used for flying." They are associated with the color of white.

    

2. Cherubim
   The second highest Order of Angels. Their name stands for "Wisdom" or "one who prays." In the Throne Room they were said to stand next to the Throne of God. They are also depicted on the Ark of the Covenant as its Guardians. Cherubs are the first Angels mentioned in the Bible when two Cherubs are placed by God to guard the gates to Eden with Flaming Swords. "He drove out the man; and at the east of the Garden of Eden he placed the Cherubim, and a Flaming Sword which turned every way, to guard the way to the Tree of Life." Genesis 3:24. The Cherubim were also known as the record keepers of Heaven. They were not described as the cute little "cupid like" angels depicted by painters, but instead as having four wings .

    

3. Thrones
   The third ranking Order of Angels. They were also known as "Wheels" and "the Many-eyed Ones". They were considered Angels of Justice as they were said to carry out God's decisions. These Angels were often believed to be deployed like charioteers around the Throne of God. They were described in Ezekiel 1:13-19 as having four wings and four faces. They sparkled like the color of burnished brass. They had the hands of a man under their wings. Their wings were joined one to the other and they did not turn when they traveled - they all went straight forward. They had four faces. They had the face of a man as well as three other faces on their helmets - that of a lion, an ox, and an eagle. They moved on wheels in the middle of wheels, blue-green in color. Above their heads "the likeness of the firmament," which was the color of crystal, and under this were their wings, two on each side of their bodies. The noise of their wings was "like the noise of great waters."

    

4. Dominations
   The fourth ranking Order of Angels. According to Jewish traditions, the success or failure of nations was decided by this Order of Guardian Angels. Dionysius claims that this realm "regulates the Angels." Dominations have been described as wearing long albs, or gowns reaching to their feet, hitched with a golden belt and adorned with a green sole. They carry golden staffs in the right hand and the Seal of God in the left. At other times, they are said to hold an orb or a specter.

    

5. Virtues
   The fifth ranking Order of Angels. They have been called "The Brilliant or Shining Ones." They were called the Angels of miracles, encouragement, and blessings, and were particularly involved with people struggling with their faith. Virtues have been said to be the chief bestowers of grace and valor. The two Angels at the Ascension of Jesus were traditionally believed to be from the Order of Virtues. Virtues were usually represented in a group

    

6. Powers
   The sixth ranking Order of Angels. Powers have been credited as being the first Order of Angels created by God. responsible for maintaining the border between Heaven and Earth. Acting as a sort of elite guard, they constantly watch for demonic attack, and are the major line of defense and battle during heavenly warfare. It is their duty to protect the world from the infiltration of demons. They protect our souls from these evil beings and act as ministers of God who avenge evil in the world. It was also believed that at death, the Powers guided our transition to Heaven.

    

7. Principalities
   The seventh ranking Order of Angels. The Principalities were described as the Angels who protect religion. They were also considered to be the guardians over the nations and the leaders of the world. As such, they are assumed to be given more freedom to act than the lesser angels below them and are responsible for carrying out divine acts concerning their area of jurisdiction. It was from this Order that the Angel who aided David in his task of slaying Goliath was thought to have come. Finally, they are given to the task of managing the duties of the angels. Principalities have been described as being dressed in soldier's uniforms with golden girdles.

    

8. Archangels
   The eighth ranking Order of Angels. These were considered to be the Angels in command of ministering to humans. They are also the most widely known Order of Angels, since the only Angels mentioned by name in the Bible (Michael, Gabriel, and Raphael) come from this Order. They carry God's messages to humans and are ultimately in command of God's Armies of Angels who are constantly in spiritual warfare with the forces of evil and the fallen angels. The number of Archangels usually considered to be associated with our system of worlds is seven, as in the Seven Angels who stand before God in Revelation 8:2, which is often interpreted to mean the Seven Archangels. By non-canonical tradition the Seven Archangels are Michael, Gabriel, Raphael, Uriel, Jophiel, Chamuel, and Zadkiel. The Church only officially recognizes Michael, Gabriel, and Raphael.

    

9. Angels
   The ninth ranking Order of Angels. Angels are the Order closest to humanity. The word angel derives from the Greek Angelos meaning "messenger." . First, they are responsible for watching over the affairs of mortals in a more direct manner than the principalities. Instead of watching entire nations, angels watch over households and individual souls, guiding them subtlety and keeping them safe from demonic attack. Also, they are the carriers of God's word to mankind, acting as messengers and couriers to both God and the upper ranks of angelkind as well. In Hebrew, they are called Mal'akh, meaning "messenger", in Persian the word is Angaros or "Courier". 

I hope this helps.

God Bless,
Bro. Ignatius Mary