Is man God's greatest creation? I know there is a verse that states this I will edit it in after I will find it.

But also we have these verses:


  Psa 8:4 What is man, that thou art mindful of him? and the son of man,
  that thou visitest him?  Psa 8:5 For thou hast made him a little lower
  than the angels, and hast crowned him with glory and honour.


So we know God created both angels and men but here it states man are created "lower" than angels.

So in what aspects are men God's greatest creation. Power, intelligence ?

Or can this be interpreted as the reason for which men is the "crown" of his creation ?
The way I interpret this passage


  Psa 8:4 What is man, that thou art mindful of him? and the son of man,
  that thou visitest him? Psa 8:5 For thou hast made him a little lower
  than the angels, and hast crowned him with glory and honour.


God is the God of all creation. Jesus IS also God who dwelt among men (John 1). He lowered his status as God himself to dwell among men and die for them. That's what it is referring to being made lower than the angels.  The angels are up in heaven.  Men are down here on the earth.  


  Phil 2:5-8  -  Let this mind be in you, which was also in Christ Jesus:
  6Who, being in the form of God, thought it not a thing to be grasped to be equal with God: 7But made himself of no reputation, and took upon him the
  form of a servant, and was made in the likeness of men: 8And being found in fashion as a man, he humbled himself, and became
  obedient unto death, even the death of the cross.


As for the specific question about is man God's greatest creation I would says yes absolutely.

God didn't send Jesus to die for Angels, or plants or animals.  He didn't become a horse when he came to live among men.  He became a man.  We were made last on the earth for a reason.  It was because in the beginning everything on the earth was made for man to enjoy.  Only man is made in His image and we were the ones who were given dominion over the earth.


  Gen 1:27-28  27So God created man in his own image, in the image of God created he him; male and female created he them.28And God blessed them, and God said unto them, Be fruitful,
  and multiply, and fill the earth, and subdue it: and have dominion
  over the fish of the sea, and over the fowl of the air, and over every
  living thing that moves upon the earth.