I come from the western part of France, close to Nantes and the ocean where I grew up.
I lived 2 years in Rennes, and 1 year in Lyon and a couple of months in Grenoble.
Lyon is so far the best city in France to me. It is really beautiful, you are close to the Alpes and not so far away from the Mediterranean sea. You have a lot to do and so many beautiful monuments! If it is one city I could see myself living in in France, it would be Lyon.