observations

1. French-speaking = better food.
For example, food in Prague was pretty much the same as German food... potatoes and pork. And bread. The Netherlands had some nice seafood, but otherwise nothing too special. However, Belgium (which is half French-speaking) had the most delicious food.

2. French-speaking = romance & affection.
PDA is very uncommon in Germany. Even hand-holding, I feel! It's a rarity to see a couple making out in a public place (exceptions are clubs or festivals like loveparade... but the people making out there aren't even in a relationship). But the Belgians are definitely more affectionate and not afraid to display it! I can't really say if there was a normal amount of PDA relative to the U.S. and it just seemed like more because I've been in Germany for so long, or there is actually more there.

3. French-speaking = more diverse.
Ok, so I'm only going off of the 2 mostly French-speaking cities I've visited this summer, Geneva and Brussels. But going from Amsterdam, which is still a large city, to Brussels, there was a huge change in demographics. Same with going from Germany to Geneva.