I am not unresponsive, I don't know where you got that from. I'm simply asking questions and researching, if I knew the answer to my questions I wouldn't be asking it.
Oxford obviously has advantages, thus making such a big name, but the advantages the university will have alone is as you say, subtle to that initial push after graduation. In the long run it makes a scrap of difference where you came from, and it's completely down to you as a person.
I didn't sit A levels due to me leaving the country because of my mothers illness, and I have a btec level 2 in performing arts at distinction, so that's 4 A* in my GCSE's.