Tough choice. I think it would probably be more open of a selection since Sam hasn't been in the middle of a war so frequently. She isn't a very religious person, so she'd feel awkward or think poorly of herself if she joined paladins or Clerics for different reasons other than that.

She'd probably stick with her normal trends when she was playing the game; IE. Maybe something more offensive oriented? Assassin, mage, Spellsword are the closest I can think of.