Who is Christ?

At bible study last night...Peter asked the question "Who is Christ?" and it really got me thinking. If someone were to ask me that....what would I say? I honetly can't answer that because...He's God's son, God's right hand man, and God....so honetly...how do you answer that without the person thinking your crazy? If you have any answers...whatsoever...feel free to tell me..I think that would be cool!