I thought about this for 2 days mmmmmmmmmmmmmmmmmmmmmmmmmmmmmm?????? I would have to say ,,,, honestly say, I have more than 1 >>> Sorry ,,,, But bear with me >>> : MY Soul,,, .. For it shines out through my eyes of Blue ,,, My Heart ,,, Cause it has been broken many times >>> and has mended and beats a pace of solitude for others .... My Shoulders ,,, They carry the weight of my world and are broad enough to carry others woes .,, My Smile ,,, That ,, that is infectious ...... And brings a smile to those I have yet to meet or even know .>>> OH ,,, My Humbleness ... For it allows me to feel anothers pain and relate with compassion .....BUT To choose MY Best Feature ,, I would have to pick the whole of me in combination as a complete package >>> " to know me is to love me . !!!!