Hi!
I went to Aberdeen 2 years ago and by then they had already started renovating the student village - so you cant go wrong with a lot of the accommodation in my opinion.
I was a student ambassador and to my knowledge, there are no twin rooms, everyone gets a single or 3/4 sized bed...I could be wrong tho.
So Hillhead village is where all the first year students are based. It's about 20 minutes walk from the main campus and there is also a bus you can take. It's really nice because everyone is new and wanting to make friends and you guys now have that fancy activities centre.
You can request to be in a single sex flat. I was in Hector Boece, responsibly priced and I lived with only 4 other girls and we shared a bathroom. Its was brand new when I moved in and I can imagine it is still nice.
On the university of Aberdeen website there is an option to have a live chat or you can send an email to the accommodation team to get more up to date info.