I realized this, but there seems to be a cluster in personspace of theists who are no less rational about the concepts on your list than the average atheist. If there are any topics that even these theists are irrational about, can you give examples?

To be honest, I really haven't met enough theists in that cluster to be very confident about any examples. I can see the matter of church attendance (in general, in terms of the course of the relationship if it moves toward marriage, and later in terms of raising children) being an issue. It's not necessarily something that will come up right away, but I would see the specter of it hovering overhead. There's also the irrationality of religious beliefs themselves, e.g. the idea that God is both omnipotent and omnibenevolent, or the idea that Jesus performed miracles.