I created a dude in hot pink armor and matching outrageous hair (Guile style). Named him Jammie Donut. Didn't expect him to prove he was Colonel material and my best assault class. More alarmingly, my wife is now rooting for him, so he is now taking less risks. He even spends more times in the barracks (when he isn't in the infirmary).
My best soldier is a female heavy nicknamed Boom Boom. She has almost 60 kills and is rock solid.