Hi Caitj97!
My name is Patricia and I'm a final year BU student and also a representative for them on TheStudentRoom!
Congratulations on your Conditional Offer!!!
You've asked a very interesting question and most likely you'll get a different response from everyone you meet so here's my personal take on things having been to all the accommodation
Dorchester - Opened in 2012 and is considered the luxury halls, all round good mix of parties but also quiet when you want to knuckle down and get some work done. Also famous for the 6ft beds (not quite a double but definitely bigger than a single!)
Lyme Regis - Generally known as the Party House which is good if that is what you are after, built on top of the Tesco (that's always a plus). Room is a standard size with the a single bed
Purbeck - Another one that is notorious for being a Party House, slightly more rooms inside as there are two blocks. Again standard size with a single bed
Chesil House - Opened in 2011, a quieter house and looks like someone has done a mass Ikea shop (you'll know when you see it). Smaller of the halls as I think It has only about 200 rooms (compared to the standard 400/500). It's a mixture of under-grad and post-grad students which is probably why it's a bit quieter
Cranbourne - Newly refurbished in 2014 and one of the biggest halls of residence housing over 500 under-grad student. Cranborne is a funny one in the sense that there are three types of room in ONE flat (value, standard and premium) so in the same flat you could be in a standard room while your next door neighbour is in a premium room (which has more floor space and again the 6ft beds!) not to worry, the difference is reflected in the price
Lansdowne Point - brand spanking new for 2015 and its the only residence that offers catering, it's so new that it is yet to get a reputation!
Corfe - This is the complete opposite direction and is based in Poole, again, it's a quieter house but does still have parties. There are stunning scenic view of Poole Harbour (if you happen to be on the right floor)
Student Village - Most people forget about this Halls of residence because it doesn't have the standard look. It looks exactly what it says on the tin, a small village of house but with students living inside them. This is the only one based on campus and again is quite quiet this is because there are families living in this halls of residence and as such people have to be mindful of this
Unilet - this is again another forgotten type of residence, as it is a normal house on a normal street that is let by the university. this means that your next door neighbour could be a family of four or more students, you never know! Most of the unilets are close in proximity so you won't have to worry about being by yourself and they are also notorious for a good ol' house party
Well, that's a run down of the different types of halls of residence and a brief overview of their reputation. But as I said, ask another person and they will give you a different answer, there is no hard and fast rule and it's all about luck of the Irish
Good luck!
Patricia