Predestination: my fate is determined the moment I am born
Karma: I can choose my destiny based on my actions
I would choose karma, but karma is a troll who gives a bad time to those good people out there: Martin Luther King, nuked; Abraham Lincoln, shot; etc. Karma is a gigantic douche to me when I've done good things and then I get screwed over by some random stuff. Plus, there's many bad people who end up getting rich or powerful.