I am from TBS. If you are targeting at a high future salary, you should first ask whether you want to work abroad or in China. If abroad, then France is not a good choice. The economy in France is bad. If you want to work in China, then both are ok. Personally, I would recommend TBS, because it's not worth it to spend 30 grand a year on education. I have a post about my TBS choice, you can check it out.
I am doing a gap year right now. I think I will come back to China.
TBS is a very good school, but not perfect.
You need to do more investigation before make up your mind.