That's quite a summary of all Col. Brandon's good points.

And since I want to focus on his charms, your post interests me a great deal :)

His good manners, and sensitivity are all so very clear - to those who are not having their vision getting foggy due to petty envy and jealousy or youthful arrogance.

But charm?! Now I don't know if there is a strict rule that has to be applied to measure 'charm' or does it depend wholly on what one is personally charmed by.

Going by the latter, I have to say that his speech about 'prejudices of a young mind' show his smitten self, which I find charming :)

Earlier I felt he had a quiet charm, when I imagined him listening attentively to Marianne playing and singing when everyone else was so inattentive. For me that is definitely 'charm'.