Ok, now a serious answer. I really think they cater to a different audience.
All in all the Freewheelers are probably the better jeans. Cleaner construction, high quality materials, better pattern, more unique denim.
The CSF really focus on the "authenticity" even if this means deliberately including failures. But (as you think as well @Dr_Heech ) using the period correct sewing machines and using the same sewing techniques is
something you won't find on other jeans on this level.
Price-wise the FW clearly win as you get a lot for your money and you don't pay a dick
But in the end, the best jeans is the one that fits you best and which you want to put on each day and that's why I said SC 1946