There are essential doctrines of the faith that are at the core of the faith.
There are important but secondary issues of the faith addressing questions like “How does God do stuff?” or varieties of how we practice the faith.
Sometimes these are elevated by some to be the tests of who has true faith.
For some, it is an apologetic methodology however, there isn’t an inspired inerrant method.
In fact, Sr. Fernandez explains the seventeen different methods that are in use.
Which is best?
That depends on who is using it.