Angels are different than either man or the Godhead. The word Angel means messenger in both the both the Old and New Testament. Unlike man angels are incorperal that is purely spirit. Angels are not subject to aging and are eternal. In this way we will be like them in heaven.
Angels are both stronger and more knowledgeable than man.
They stand in Gods presence, which we are unable to do in our present condition. They are of a higher order of creation than us, however when we are redeemed we are told that we will judge angels. We are told however that cherubim, seraphim, and living creatures do have wings. They watch over us while we are here on earth. The truth of the matter is that we don't know for sure.