Out of all the MOH citations I've read, MSG Roy P. Benavidez's is the one that stands out the most in my mind. I have to think this man was the inspiration for John Rambo. There is a pretty good article about him on Wikipedia that includes his MOH citation. http://en.wikipedia.org/wiki/Roy_Benavidez
Two others that really hit home for me were SFC Randall Shugart and MSG Gary Gordon. These men were the two Delta snipers that went in to provide security for Super 64 after it was shot down during the Battle of Mogadishu. They had to know their chances of survival were slim to none but they went in anyway and saved the life of pilot CW3 Michael Durant.