Just a few comments on your choice of wording:
all I am doing is expressing my preference
What precisely is it that does the expressing?
I merely try to identify it act upon it
What is it that does the trying?
we identify which of the multitude of competing urges is the strongest
What is it that can identify?
These things we discover, not choose
What does the discovering?
And in answering these comments - bear in mind that you said "conscious" is irrelevant.
Ha, so you think a quick hop skip and jump diverting the focus to souls will get you out of a deterministic knot ? whatever the mechanism of choice, it still is subject to the principle that an action is either derived or it isn't, in which case it is random. That which is derived is not free, it is a consequence.
For all practical purpose we can assume that reality is deterministic; this allows for predicability, for meaning. The chaos of a random world would be unintelligible. The way that light is diffracted through a lens is determined by the properties of the lens. For a thought experiment, suppose I go up to some random bloke in the street and call his mother a whore. After I pick myself up I regret not having realised this this bloke, he believes I was asking for it, if he doesn't sort me out, I might go and do the same to someone else. Probably a conservative to boot. So I choose my next victim with more care, a hare krishna devotee coming singing down the street chanting the name of god. I insult his mother, but his mind is calmed by his practice, and he holds the Ghandian principle of non-violence so dear, that he manages to suppress his urge to take a swing at me. We might say, he has demonstrated his free will; or perhaps free won't, and this is a characteristic of, but not unique to, humans. But both reactions are understandable, both are compatible with determinism. Each brain is unique, each brain has had a unique formative journey through life, each brain ends up with a unique system of values and hence, like lenses processing the light differently, each brain processes action and reaction uniquely producing different signature outcomes. Adding a layer of 'soul' stuff on top of the mechanisms of choice adds nothing of any explanatory value.