Ellen G. White preached
"Michael, or Christ, with the angels that buried Moses..." (Jude 9, Spiritual Gifts, IV a, p. 158)
"And before the context closed Christ Himself came to Gabriel's aid--Gabriel declares 'But lo, Michael, one of the Chief Princes came to help me" (Daniel 10:13, Prophets & Kings, p.572)
"There is none that holdeth with me in these things but Michael (Christ) your prince." (Desire of Ages, p.99)
Here is a more indepth explanation for you to read.
http://www.adventistbiblicalresearch.org/Biblequestions/jesusothername.htm