What country to live in?

France has a very good mix for weather, you have beaches and lots of sun in the south near the Mediterranean sea and an efficient railroad network that can bring you to the Alpes for snow really quickly if you want to. The south also has a dry climate which is good for all kinds of allergies/breathing problems.

The people are generally well cultured and read a lot, they are not rude unless you are going to Paris.
On the economic side, the country is in kind of a crisis now with a lot of unemployment (it's hard to find an internship). But there's always a place for people who work hard.



If you are really searching for more economic opportunities I guess you'd be pretty well set in Brazil, I don't know about your domains specifically, but there's been a constant search for engineers.
In terms of climate, Brazil is so large that you'll probably find whatever you want going north/south/east/west.

What countries aren't? Though the weather for both countries is def a plus.