Due to racial bonuses the Humans would most likely be your best choice, because they get both a bonus to dexterity and cunning.
Technically the Human Noble, but the base attribute points given upon character creation are a 1 point advantage to the humans (Basically negligible).
Dwarves and elves start out with 14 points in Cunning, Humans 15.
Humans and Dwarves start out with 15 points in Dexterity, elves 14.
So, in short, there is almost no difference when attempting to min max a character.
Go for the Origin you most want to play.