Hi .. I guess it`s down to a few things ..personal choice and practicality. Swiss is lighter to wear, French being that bit `heavier` but is a bit more robust, in wear. Swiss is probably the ultimate [apart from the `thin skin `material ] in un-detectability to the eye especially for exposed hairlines. Some people like to combine the durability of French with the invisibility of a Swiss front..... hope that helps...regards, Paul.