The SDA’s do not have the same beliefs as the JW’s on that subject.
http://www.sdanet.org/atissue/books/qod/q08.htm
They both believe Jesus is the Archangel Michael, they just have different views on Michael. They are both wrong. Here’s what I know:
THE BIBLE SAYS:
“For to which of the angels did He ever say, ‘Thou art My Son, today I have begotten thee?’” Hebrews 1:5.
“But of the Son He says, ‘Thy throne, O God, is forever and ever...’” Hebrews 1:8a.
“But to which of the angels has He ever said, ‘Sit at My right hand, until I make Thine enemies a footstool for Thy feet?’ Are they [the angels] not all ministering spirits, sent out to render service for the sake of those who will inherit salvation?” Hebrews 1:13-14