If it's a choice between the two, I would recommend going to Nathon. In fact, the reasons you have already stated are clear enough: a house to live in, a stable sales target (focusing on maintaining the relationship between the two parties), and a little bit more personal time (conducive to the continuation of further education for upwardly mobile people like you). If you consider the latter - a hospital managed by a centralized ministry - you are advised to focus on it. Please note that my suggested choice is not for the hukou issue. Having an establishment and stability are rare in any dynasty. Remember the saying: listen to people and eat well!
Many things are not appreciated until you have traveled, and I have. Once thought that the civil service nothing good, and now want to test age does not allow, to say the heart - regret is useless! The good thing is that now also mixed a company technical director (planting industry), income is enough to support the family, the day can also be living.
All in all, my personal advice is: go to the "central ministry of a hospital", do your best to get a civil servant is the best way!