I think most people would advise to pick the track that is most relevant to your work experience (and reasonably so), but I did want to throw in another perspective since it was the alternative advice I got and it was the way I ended up going:
Pick the track that is the most *interesting* to you, even if it doesn't align with what you're working in (although, convenient if it does). The rationale is that you're already learning mostly whatever you need to know on the job anyways. And from a study perspective, trying to learn something that you're interested in naturally makes the process go a lot easier.
I do valuation for life & annuities, but I ended up picking the QFI track because that was the material that I was most interested in, and the information was a lot more palatable for me to digest. I don't have any interest or intention of going into hedging, but I just found that track the easiest for me to take, academically.