Warwick and Durham are very different to the other 3. Warwick is an out of town campus university about 4 miles outside Coventry. As with all out of town campus they have everything in one place with banks, shop, pub/nightclub, sports facilities, accommodation etc on the site. Durham is in a very small town and has 2 main campuses some distance apart. It is a college based university and the accommodation isnt on campus but set around the small town. The other 3 are much bigger cities. Manchester is a city university in the middle of the city. Leeds is on a campus a very short walk to the city centre and Birmingham is on a campus about 2 miles out of the centre of Britains second biggest city. If you are unable to visit then google student videoes on the universities to give you some idea. The difference in reputation will be negligeable.