lol I live in Brighthelm, you should trust my judgment a bit more :P
Have you looked in Brighthelm? Cos I'm assuming if you have they took you to a nice done up house. I'm not entirely sure how many houses have been done up, but out of the 5 different Brighthelm houses I have been in, only 1 of them has been refurbished. So you will most probably end up with a crappy house that hasn't been done up. Every single person I know in Brighthelm has a complaint about their showers (they don't work/they are either too hot or too cold), the general bathroom areas are pretty crap/peple don't really care about any household complaints/the cleaners are a bit **** There are good things though-room is really good, and you get a washing machine and tumble dryer (only accommodation that has this.) kitchen area is okay and so is the sofa bit (only some houses get sofas) but then the general hygiene depends on who you live with (mine is quite messy a lot of the time but i know that's not everyone's fault)
Your point about stereotypes, tbh, is pretty true. Yes, you will find the more 'richer' kids in the better accommodation, but that is natural. Tbh it's not just about making friends with who you live with, so I guess it's not the end of the world. However, with East Slope that is pretty much a drug den/loud people place/people who never go to lectures/seminars. If you're really concerned with the type of people you associate with then Park Houses/Park Villege will have less 'rich' kids and more 'normal' kids. Tbh I wouldn't judge where I live by what type of people live there cos you're bound to meet awesome people in other places, but that's up to you.
I'm just going to be flat out honest here- unless you already have a confirmed place (as in, not conditional) then you are more than likely NOT to get Brighthelm, Lewes Courts, or Swanborough. If you picked East Slope you would probably get that, but most people I know who picked Brighthelm ended up in their 5/6/7th choice (this being Park Houses/Park Village.) Brighthelm is ridiculously oversubscribed, and in my opinion is not worth the rent per week.
hope this has helped a bit!