@Pumpkintopf, it's over 3 decades ago now, but I did English Lit., History and RS at A level and went on to read Philosophy and Theology at Oxford. I've taught both A level RS and the AQA Philosophy A level (the latter is excellent, though still doesn't seem to be widely available), though am a bit rusty.
I'd agree that those are a good selection of A levels, but they're very heavy on essays and reading. The only advantage I can see of starting four is if your DD can't yet decide between History and Psychology. Otherwise it's a lot of extra work without any clear benefit.
Don't know much about EPQs as the schools I'm most familiar with seem to have dropped them. A lot of universities do drop one grade for an A grade EPQ, though - I think that includes places like Nottingham and Newcastle. Others don't, obviously, including Oxford, Cambridge and Warwick, off the top of my head. One advantage to doing an EPQ would be to provide your DD with the chance to research an area of philosophy and give her a clearer idea of her own interests, as well as something to discuss on her PS if that is the course she pursues.
Does her RS A level cover philosophy of religion? A lot do, and it's very popular, but I'd advise her to do some wider reading before making university decisions, as a lot of other topics in philosophy are more difficult and quite far removed from what some students imagine. Have a look at the AQA A level syllabus - it's changed since I taught it and there are no longer set texts, but the specification is quite detailed and I believe there's still an extract-based reading list. Or just have a go at reading some classic texts - Descartes' Meditations are a very accessible 'way in' - we used to do this as an A level set text - or Bertrand Russell's The Problems of Philosophy. There's an excellent book by Nigel Warburton about major philosophical texts, with lots of extracts, which again might stimulate possible EPQ ideas as well as giving your DD a clearer idea about whether Philosophy is for her.
Anyway, I know you asked about A levels primarily, so I'll stop rambling. As someone else said, most Philosophy degree courses just specify an essay based subject, so your DD's choices would be fine. Philosophy is often part of a joint/combined degree, so there are other popular A levels - most PPEists at Oxford do maths, for instance, though it's not listed as essential, and is more for the Economics part of the degree. Philosophy students I knew with A level maths did seem to find formal logic, a subject I really struggled with, easier than those of us with purely arts/humanities A levels, but it's not a compulsory module in most Philosophy degrees and may well not be at Oxford any more. We only had to do it for a term in 1st year.