I did philosophy and ethics, and really really enjoyed it, I did psychology too
Both have come in handy firstly RE was good when reading medical/health ethics journals, I also got 100% in my ethics exam last year as the whole module was pretty much my as-level year lol Psychology has come in handy with the basics of research methods etc and as a grounded view for my EBP module etc, and means I dont have to learn a whole new language etc like some of my peers, I have something to go off on- However I still used research methods in my science a-levels.
As for health and social care- well coming from a nursing student, I wouldn't even reccomend it for nursing. It doesn't really cover much, is largely focused on models and care theories that are only slightly touched on in the degree, and is only really good for students who prefer coursework over exams. Most of my friends who did it actually went onto allied health professional courses such as OTs, physios, social workers, child development etc than actually nursing/midwifery/medicine!
However pick a topic you'd enjoy aswell, thats the most important thing!