“…the Scriptures point to the resurrected Jesus Christ as the chief of all angels—Michael the archangel. [Jesus is] no longer a human, he has the voice of an archangel.”

http://wol.jw.org/en/wol/d/r1/lp-e/102002085

“After his resurrection and return to heaven, Jesus resumed his service as Michael, the chief angel, ‘to the glory of God the Father’.”—Philippians 2:11.

http://wol.jw.org/en/wol/d/r1/lp-e/2010250?q=michael%20the%20archangel&p=par

The astute Bible student may ask regarding the above quotes, what about Acts 7.56; 17.31; 1Tim 2.5; Rev 1.12?

Furthermore, the Son of God is described as a unique procreation from God (monogenes, John 3.36) whereas an archangel is described as “one of the archangels.” Daniel 10.13

“The reference is evidently to some group of superior angels, or (to adopt the later Greek expression) ‘archangels.’ In the book of Enoch, as has just been shown, sometimes four angels (see esp. xl. 2–9), sometimes seven, are distinguished above the rest. Among the later Jews (Edersheim, l.c. p. 748 f.; Midrash Rabba on Numbers 2:20) Michael, Gabriel, Uriel, and Raphael were usually regarded as the four principal angels, privileged to stand immediately about the throne of God; but seven are mentioned, not only in Enoch xx. 1–7, lxxxi. 5, xc. 21, but also in Tob 12:15, and Revelation 8:2 (‘the seven angels which stand before God’); and probably these seven are alluded to here.” Cambridge Bible for Schools and Colleges

“Gesenius (Lexicon) explains it in this passage as denoting the “chiefs, princes, and angels; i. e., the archangels acting as patrons and advocates of particular nations before God.” Barnes’ Notes on the Bible