These small differences fascinate, that 1/8th of an inch that makes the difference to how a collar sits.
As someone once said on here - 'I know its only collar roll, but I like it'.
I'm more inclined towards the lighter weight Oxfords now, just for comfort and wearability in spring and autumn. I think the heavier Oxfords look alright with a tweed jacket but almost never with a suit.
The higher the collar, the closer to God!
Question for you, B_B - did you ever get round to a Proper Cloth purchase? Am still eager to hear your thoughts.