I realise the question was addressed to the OP, but as I am an Anglican convert I hope you are interested in my answer.
Firstly, as someone who has met and also read many converts, my impression is that each story is different, ie. there is no one dominant reason for conversion. One could say that it is a personal call, in each case.
For me, my conversion as a twenty-one year old followed a re-awakening of my Anglican faith, and deeper study of the scriptures. Reading the gospels I became conscious of the humanity of Christ, and also of the directness and simplicity of his commands (eg. on divorce, on sin). Before this, I had not been particularly interested in theology, but I started asking Protestant friends, who gave me answers with the standard Protestant proof-texts from the epistles, and I also started attending different Protestant denominations, who were all well-meaning, but not in agreement with each other. I felt that my personal encounter with Christ was being obscured by theology. I came to see that Christ’s Church must be visible and human, as he was, and also that it must teach with his authority. I started reading about the Catholic Church and found everything very convincing.
Before this, earlier in my life I had known some Catholics and always found them a little bit “different”. I think they must have sowed the seeds. I had also had some bad experiences with Catholics, as is inevitable in a fallen world, but somehow that didn’t bother me.
So, for me, my conversion was that I read the Bible and had a personal encounter with Christ - and found led me into the Catholic Church.
As I mentioned in my first post, I cherish much of Anglicanism, however I don’t miss it so much as to have the slightest regret about that decision.