I love the French Blue, however, I saw both together in the store yesterday and the Vert was TDF, so, I would have to go with that. Vert gets my vote!!
I have FB and VG and even though I love them both, my FB has the best leather and wins hands down. I did go out and buy a new spring wardrobe to go with my bag. But you know, everything I bought goes with VG and FB. They've been pretty interchangeable. Good luck making a choice, it's a tough one.
My vote goes to French Blue,but,will you order your bag or see it on reality?In that last case,I'm sure when you'll see both bag your choice will be easier:all bags are differents,thickness,suppleness...