Just thought I would help people out with their decisions for next year as I know last year, I really would have liked some advice! I stayed in Rootes (old) so obviously I will be able to give the most information about that but I shall rate the others based on having seen and heard what people have said.
1. Rootes
I personally would definitely recommend rootes. I chose Rootes as my first choice and you are pretty much guaranteed to get it if you put it as your first choice as there is like 900 rooms overall or something. You may think I am being biased because I have lived here but I know so many people that in hindsight would definitely have preferred to stay in Rootes than anywhere else. There is new and old Rootes but they are basically exactly the same apart from the rooms in new rootes are slightly bigger but you can't really tell that much tbh. However the old Rootes kitchens are bigger! Both old and new rootes have been recently refurbished so they look the same. Don't be fooled by the outside of old rootes which makes it look so old!! The inside is much nicer and just as nice/the same as new rootes! There is 16 in a kitchen in old rootes and I know it sounds like a lot but honestly its absolutely fine!! There are 3 toilets, 2 showers and 2 bath/showers between 16 and nobody ever has to wait to use them, like I know a lot of people say they can't share but honestly it is absolutely fine!! Also in second year chances are you will probably have to share if you buy a house in leamington/coventry. The kitchen is a perfect size and everyone normally cooks at different times so it is never really that busy in the kitchen. There are 2 fridges and 2 freezers so everyone basically has one shelf each in both the fridge/freezer. In my room I got a bedside table, a cupboard, a chest of drawers, a bed (obviously), a chair, a desk chair, a desk with a shelf on the wall above it, a bin, a pinboard and a sink with a mirror above with a light and a cupboard underneath it. Everyone says Rootes is the party halls which puts a lot of people off choosing it but if you don't want to go out every night etc. , you don't have to. It can be noisy in Rootes at times but if people are going out they normally leave before 11 so it gets quiet. Also if you say you don't want to be with loud people you usually get put on the top floor which is much quieter. It is so close to everything (literally 2 min walk to the SU/costcutter but far enough away that you can't hear people at the SU) which is probably on of the best things about it and it is sociable so you will make friends so easily like it is your flatmates that can make or break your first year at uni but everyone I speak to in Rootes loves where they live and the people around them. It is far from tescos but everyone just gets tesco delivery which is so easy and they deliver it to the car parks closest to you accommodation which is perfect! Trust me Rootes is hands down by far the best choice of accommodation.
2. JM/AV (both the same basically)
These are about a 5-10 minute walk from the SU depending on which block you are in but there is building work going on near there right now so I don't know if that will still be going next year. If you really cannot stand being in shared bathrooms then this is definitely the best choice. It is sociable but probably not so much as Rootes but it is very close to everything. I would basically describe them as Rootes but with an ensuite. In the choice between JM or AV, I would probably suggest JM just because it is slightly closer to the SU etc. and is maybe a little more sociable.
3. Tocil
This year it was just postgrads in Tocil so I don't know much about it but it is in a good location, half way between the SU and tescos. It is located right behind the sports centre and close to the maths and stats buildings. It seems like a nice accomodation however there may be a lot of postgrads living there still I am not sure.
4. Sherbourne
Sherbourne is quite far from the centre of the campus but the actual accommodation (rooms and kitchens) are really nice. It is also fairly sociable although it really is luck whether your flat is sociable or not as I have had mixed reactions from people living in sherbourne. A lot of people complain about the distance from the centre of campus but if you have a bike or something it shouldn't be too bad.
5. Heronbank/Lakeside
Heronbank-
Only slightly closer to the centre of campus than sherbourne but it is in a really nice location next to the lakes and it is very quiet around there. However half of heronbank is postgrads which means there is not as many undergrads around. Heronbank is fairly sociable but less so than both sherbourne and JM/AV. It is also quite far from the centre of campus which a lot of people I know don't like.
Lakeside
This was just postgrad this year so I don't know much about it but it is in the same location as heronbank and from observation I feel like it is very similar to heronbank.
6. Westwood
It is SO far away like if people say it isn't they're lying. Okay it is near tesco and the post room but the walk to the post room isn't that bad and there is a shuttle bus that goes from the lib or by the SU which takes like 10 mins to get to and you can always get tesco delivery which is so easy! Westwood is quite sociable as an accommodation but I feel they mainly socialize with other people in westwood unlike AV/JM and rootes etc. which all socialize with eachother but that's only my opinion. There is a common room though which is quite cool. It is kinda like rootes but less sociable and way further away and with much bigger rooms!
7. Cryfield
It is on the other side of the road from the centre of campus so is a bit out of the way. I don't really know many people who live there and personally I wouldn't recommend it as it is not that sociable from my personal opinion and the actual accommodation itself isn't anything special.
8. Bluebell
Yes it is probably the nicest accommodation. But unless you are an international student then do not choose it! The majority of bluebell is international stundents (mainly french) who all chat to each other in french etc. and socialize together. However having said that I do know a few people in bluebell who have really nice flats that are sociable so it is just luck but for the prove you are paying I don't think it is a risk you should take! Honestly save the money!!!
9. Whitefields
Literally probably the worst accommodation.. Yes it is cheap but it is small houses so you only really socialize with your house. The houses seem so small and cramped and a lot of people use whitefields as a cut through path to get places so there are always people walking past there. The kitchen is tiny and they are so close to the SU so it is very noisy. Basically just avoid avoid avoid!!
Again this is just my opinion but if you have any questions on any of the accommodations, I have friends in a lot of them so I can ask them more specific stuff you want to know.