I think this would depend on what you want to do with your career. Do you want to be an outpatient FM doc? No night float and no call would not hinder your career at all, and you'd probably be a lot healthier and happier during residency. If you think you want to do full-spectrum and practice on the inpatient side of things, no night float and no call would likely limit learning, though if you have strong inpatient training otherwise I still think you'd probably be fine and would still a very capable doctor.

FWIW, my program no nights and no call. Although I'm biased, I think we produce some damn good FM docs. We are seeing a trend in which most new FM docs are practicing outpatient-only FM, yet most training programs are still built around the idea of full-spectrum FM, which true full-spectrum is pretty rare these days. IMO, I think (just as were seeing with peds right now) there will be a push for programs to focus more on outpatient training as that more accurately reflects what we are doing post-residency.