Choosing between two good reference letters providers
You should ask for them both, and then send them selectively based on the characteristics of the job. For instance, you could send the one from your home country to job postings in the country. It does sound from your description that the newer reference would have a better sense of what you are working on now as well as better name recognition. This would probably be better for most applications. But the point remains that getting them both and sending selectively is the strategy I have used in the past; it has served me well.