For me the MSCF was the best choice. There's an entire mode of thinking about probability, randomness, and risk neutral pricing I hadn't been exposed to. I also think the equilibrium pricing theory we get is a fantastic framework - not because it's empirically proven, but because it provides a useful starting point for building quantitative strategies. I finished the CFA before I went, but found the finance theory to be an important addition to my way of thinking. I don't think I would have gained the same grounding in the industry literature w/ CS / DS approach. I also bombed the interview for my top DS choice school, so that helped too
Regarding career services, it seems important for a program to have a dedicated career services function. Quant finance is a specific field which requires a lot of relationship building. I'm wary of programs where "you benefit from the career services of our business school" or academic departments who typically place PhD candidates.
For MSCF, I benefited tremendously from their resume and job search training. I can't speak to placement, only because as a mid-career (arguably late-career) candidate I'm so far at the tail of the distribution. I'm not a good fit for analyst / associate roles, so my search after school will depend on relationships I made in the industry prior to school. That said, they seem to be doing a good job and have been incredibly supportive of me every step of the way.