Where DD went, Bristol, both languages are equal for joint honours and they are certainly degree level. Not remotely just above A level and that goes for ab initio too.
If you are ab initio it’s still one semester in that country I believe plus one semester in your post A level country. DD wasn’t ab initio but plenty of students on one of her languages were. For Y1 they are separated out for language teaching (Post A level / ab initio) and the ab initio have to do the work to catch up by y2 because they are then taught together. So it’s not just about A level standard that’s required. It’s above that. By Y3 they are ready to go abroad and converse!
Anyone doing 3 languages to proper degree standard would really find it nearly impossible to match the joint honours in attaining the same high standard in all 3. Also with 9 months in one country, what about the other language? A short time won’t really be the same as proper joint honours students and can leave the student short of practice and immersion. A couple of months cannot possibly be as good unless the class is full of native speakers.
No course is 100% literature. Everyone gets options. The core can be literature heavy on the more academic courses but not the options which are very wide ranging at the best universities. Language degrees are partly about language acquisition but not solely. Neither are they solely about translation. The culture, politics, arts, social history of a country are all in the mix.
I forgot to mention earlier but if a student wants law afterwards, it’s vital to go to a university with a super strong law department. MFL students can often attend law societies and go to specialist law careers events. Getting a handle on how you go about converting to law, internships, mini pupillages, and networking are vital at an early stage in a law career. The lawyers will be getting their ducks in a row and MFL students who want to be lawyers need to do the same. I imagine the same applies for other careers. So looking at universities in the round and not just the MFL dept pays dividends.