Both are wrong.
I can't completely accept the role of "basic human experience" because too often experience is shaped or warped by human thought and error. It also leads to error in that my perception of it can be similarly distorted and would go against my need to a greater authority in these matters.
I can't completely discount Calvinists and Calvinism because I know many who sincerely love God with all of their heart and soul. I also know many Jews, Muslims, Buddhists and Hindus who are true to their concepts of God and justice. Do they err? Of course, some significantly, but we all do to one degree or another. The finite human mind is just not capable of understanding the infinite.
The Church teaches that all are called to God because that is where we all came from and that within each human heart is a void that can only be filled by God. All major religions and denominations contain a ray of light and truth and that truth is from God. It is our mission as Christians to spread the Word and help to remove the error. I have found that a sharp tongue, a cold shoulder and a crooked finger only hinder the process. As I have witnessed in my own life light can shine through even a broken and dirty window.
Our perceptions and experience are not perfect nor unlimited. We do not have completely free will, but neither do we have no free will.
In Christian terms and experience, Christ tells us to love God and neighbor as ourself. Without free will, this commandment- and his ministry - are nonsense, absurd.
And without any free will at all, what is repentance?
Both are wrong.