I am a menu-collector so I always snag F menus on my way out the door - from my extensive research it looks like the F and C Obento meals are identical. However, I think in F one could have a more "customized" meal with an extra Western-style appetizer and dessert/cheese without having to accommodate the rest of the cabin.

Sometimes on full flights in C it seems as if the dessert/cheese may "run out." If you order the Obento you are not "officially" entitled to dessert/cheese but I have always been accommodated. Nothing against that little sweet-paste tidbit that counts as dessert in the Obento, but it just isn't enough to satisfy my Western-style sweet-tooth. One more reason to bring back the Godivas!