In the various myths of how the world works there does seem to be a subtle difference between Fate and Destiny.
Destiny usually is represented as "that which will invariably happen regardless of any attempted interference"
Fate, however is the offering (and re-offering) of paths and opportunities which maybe chosen or rejected as a matter of free will, what Faye Weldon called god's rewrites
As I personally believe in neither of these and am very much at odds with modern thinking that there is no such thing as free will (argument which are themselves reliant on the ludicrous idea of Pre-destination) I vote for Freewill

I vote for free will, but with limits and caveats.

Our will is only as free as our subconscious decisions allow it to be, our conscious thoughts are limited by experience, and every choice is influenced by others making their own choices, as well as nature doing what nature does.

A pointless question, about three fictions.

And even if free will and destiny did exist, it would only matter to believers, since you can only sin, in the sense of place a stain on your soul, if you have a soul. Therefore what causes you to supposedly sin, is of no interest here.

There is no free will (our decisions are made subconsciously, from limited data and past reference, before we are consciously aware of making that decision). Fate is a fallacy so there can be no such thing as destiny. Depends isn't an honest choice. Maybe add one?

"Destiny", a concept along the lines of the pointless "it is what it is" or "It was meant to be", becuz Hindsight can explain/give meaning to Any damn thing.

Neither. Fate is nonsense and free will is an illusion.

All of the above.

Imaginary.

Who knows, and who says we can know? There are good arguments for both. I prefer to think we have "free will" but that's just being human.