They both seem interesting. I think this is a decision to be made by you and you alone. I have an opinion about these two, but it is not good to tell you. It is based on my interests, my knowledge and what kind of job could be easier found in my country. Don't rely on other people opinion on such a matter and I don't mean your teachers or trusted collegues, but people who post in a thread and you don't know them. Even if some of them are experts.
I hope you make the best decision.