Who is Your Chief Cornerstone?

[Peter]

On which cornerstone is your faith built? All of the apostles and prophets, through whom God revealed Himself over His 1600 year record, with Jesus Christ being the chief cornerstone....

Ephesians 2:19 Now therefore ye are no more strangers and foreigners, but fellowcitizens with the saints, and of the household of God; 20 And are built upon the foundation of the apostles and prophets, Jesus Christ himself being the chief corner [stone]; 21 In whom all the building fitly framed together groweth unto an holy temple in the Lord: 22 In whom ye also are builded together for an habitation of God through the Spirit.
http://www.islamandthetruth.com/ephesians.htm#ephesians_2

or a 7th century murdering, prisoner raping, thief, plagiarist...

Volume 4, Book 56, Number 735: Narrated Abu Huraira:
Allah's Apostle said, "My similitude in comparison with the other prophets before me, is that of a man who has built a house nicely and beautifully, except for a place of one brick in a corner. The people go about it and wonder at its beauty, but say: 'Would that this brick be put in its place!' So I am that brick, and I am the last of the Prophets."

The inspiration
http://www.islamchristianforum.com/index.php?topic=452.0

The confusion
http://www.islamchristianforum.com/index.php?topic=116.0

The man
http://www.islamchristianforum.com/index.php?topic=336.0

His followers
http://www.islamchristianforum.com/index.php?topic=856.0